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<link:definition>0 - Schedule -  (Vanguard PRIMECAP Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002568Participant2"
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<link:definition>1 - Schedule -  (Vanguard PRIMECAP Fund Participant:)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
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<link:definition>2 - Schedule -  (Vanguard PRIMECAP Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012758Participant"
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<link:definition>3 - Schedule -  (Vanguard Target Retirement 2010 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012758Retail"
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<link:definition>4 - Schedule -  (Vanguard Target Retirement 2010 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002571Participant"
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<link:definition>5 - Schedule -  (Vanguard Target Retirement 2015 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002571Retail"
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<link:definition>6 - Schedule -  (Vanguard Target Retirement 2015 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012759Participant"
id="S000012759Participant">
<link:definition>7 - Schedule -  (Vanguard Target Retirement 2020 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012759Retail"
id="S000012759Retail">
<link:definition>8 - Schedule -  (Vanguard Target Retirement 2020 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002572Participant"
id="S000002572Participant">
<link:definition>9 - Schedule -  (Vanguard Target Retirement 2025 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002572Retail"
id="S000002572Retail">
<link:definition>10 - Schedule -  (Vanguard Target Retirement 2025 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012760Participant"
id="S000012760Participant">
<link:definition>11 - Schedule -  (Vanguard Target Retirement 2030 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012760Retail"
id="S000012760Retail">
<link:definition>12 - Schedule -  (Vanguard Target Retirement 2030 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002573Participant"
id="S000002573Participant">
<link:definition>13 - Schedule -  (Vanguard Target Retirement 2035 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002573Retail"
id="S000002573Retail">
<link:definition>14 - Schedule -  (Vanguard Target Retirement 2035 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012761Participant"
id="S000012761Participant">
<link:definition>15 - Schedule -  (Vanguard Target Retirement 2040 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012761Retail"
id="S000012761Retail">
<link:definition>16 - Schedule -  (Vanguard Target Retirement 2040 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002574Participant"
id="S000002574Participant">
<link:definition>17 - Schedule -  (Vanguard Target Retirement 2045 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002574Retail"
id="S000002574Retail">
<link:definition>18 - Schedule -  (Vanguard Target Retirement 2045 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012762Participant"
id="S000012762Participant">
<link:definition>19 - Schedule -  (Vanguard Target Retirement 2050 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000012762Retail"
id="S000012762Retail">
<link:definition>20 - Schedule -  (Vanguard Target Retirement 2050 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000029700Participant"
id="S000029700Participant">
<link:definition>21 - Schedule -  (Vanguard Target Retirement 2055 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000029700Retail"
id="S000029700Retail">
<link:definition>22 - Schedule -  (Vanguard Target Retirement 2055 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000035453Participant"
id="S000035453Participant">
<link:definition>23 - Schedule -  (Vanguard Target Retirement 2060 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000035453Retail"
id="S000035453Retail">
<link:definition>24 - Schedule -  (Vanguard Target Retirement 2060 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002569Participant"
id="S000002569Participant">
<link:definition>25 - Schedule -  (Vanguard Target Retirement Income Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
roleURI="http://vanguard/role/S000002569Retail"
id="S000002569Retail">
<link:definition>26 - Schedule -  (Vanguard Target Retirement Income Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn></link:roleType>
<link:roleType
id="S000002569OperatingExpensesRetail"
roleURI="http://vanguard/role/S000002569OperatingExpensesRetail">
<link:definition>2085367 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement Income Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002569ShareholderFeesRetail"
roleURI="http://vanguard/role/S000002569ShareholderFeesRetail">
<link:definition>2085368 - Schedule - Shareholder Fees (Vanguard Target Retirement Income Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002569ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000002569ExpenseExampleNoRedemptionRetail">
<link:definition>2085370 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement Income Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002569PerformanceRetail"
roleURI="http://vanguard/role/S000002569PerformanceTableDataRetail">
<link:definition>2085381 - Schedule - Average Annual Total Returns (Vanguard Target Retirement Income Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012758OperatingExpensesRetail"
roleURI="http://vanguard/role/S000012758OperatingExpensesRetail">
<link:definition>2085390 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2010 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012758ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000012758ExpenseExampleNoRedemptionRetail">
<link:definition>2085393 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2010 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012758ShareholderFeesRetail"
roleURI="http://vanguard/role/S000012758ShareholderFeesRetail">
<link:definition>2085398 - Schedule - Shareholder Fees (Vanguard Target Retirement 2010 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012758PerformanceRetail"
roleURI="http://vanguard/role/S000012758PerformanceTableDataRetail">
<link:definition>2085406 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2010 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002571PerformanceRetail"
roleURI="http://vanguard/role/S000002571PerformanceTableDataRetail">
<link:definition>2085420 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2015 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002571OperatingExpensesRetail"
roleURI="http://vanguard/role/S000002571OperatingExpensesRetail">
<link:definition>2085428 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2015 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002571ShareholderFeesRetail"
roleURI="http://vanguard/role/S000002571ShareholderFeesRetail">
<link:definition>2085429 - Schedule - Shareholder Fees (Vanguard Target Retirement 2015 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002571ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000002571ExpenseExampleNoRedemptionRetail">
<link:definition>2085435 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2015 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012759PerformanceRetail"
roleURI="http://vanguard/role/S000012759PerformanceTableDataRetail">
<link:definition>2085443 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2020 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012759ShareholderFeesRetail"
roleURI="http://vanguard/role/S000012759ShareholderFeesRetail">
<link:definition>2085448 - Schedule - Shareholder Fees (Vanguard Target Retirement 2020 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012759OperatingExpensesRetail"
roleURI="http://vanguard/role/S000012759OperatingExpensesRetail">
<link:definition>2085449 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2020 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012759ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000012759ExpenseExampleNoRedemptionRetail">
<link:definition>2085458 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2020 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002572PerformanceRetail"
roleURI="http://vanguard/role/S000002572PerformanceTableDataRetail">
<link:definition>2085460 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2025 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012760ShareholderFeesRetail"
roleURI="http://vanguard/role/S000012760ShareholderFeesRetail">
<link:definition>2085466 - Schedule - Shareholder Fees (Vanguard Target Retirement 2030 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012760OperatingExpensesRetail"
roleURI="http://vanguard/role/S000012760OperatingExpensesRetail">
<link:definition>2085467 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2030 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002572ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000002572ExpenseExampleNoRedemptionRetail">
<link:definition>2085475 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2025 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012760PerformanceRetail"
roleURI="http://vanguard/role/S000012760PerformanceTableDataRetail">
<link:definition>2085483 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2030 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002573ShareholderFeesRetail"
roleURI="http://vanguard/role/S000002573ShareholderFeesRetail">
<link:definition>2085489 - Schedule - Shareholder Fees (Vanguard Target Retirement 2035 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002573OperatingExpensesRetail"
roleURI="http://vanguard/role/S000002573OperatingExpensesRetail">
<link:definition>2085490 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2035 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012760ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000012760ExpenseExampleNoRedemptionRetail">
<link:definition>2085498 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2030 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012761ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000012761ExpenseExampleNoRedemptionRetail">
<link:definition>2085506 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2040 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012761OperatingExpensesRetail"
roleURI="http://vanguard/role/S000012761OperatingExpensesRetail">
<link:definition>2085515 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2040 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012761ShareholderFeesRetail"
roleURI="http://vanguard/role/S000012761ShareholderFeesRetail">
<link:definition>2085516 - Schedule - Shareholder Fees (Vanguard Target Retirement 2040 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012761PerformanceRetail"
roleURI="http://vanguard/role/S000012761PerformanceTableDataRetail">
<link:definition>2085521 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2040 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002573ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000002573ExpenseExampleNoRedemptionRetail">
<link:definition>2085529 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2035 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002572ShareholderFeesRetail"
roleURI="http://vanguard/role/S000002572ShareholderFeesRetail">
<link:definition>2085535 - Schedule - Shareholder Fees (Vanguard Target Retirement 2025 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002572OperatingExpensesRetail"
roleURI="http://vanguard/role/S000002572OperatingExpensesRetail">
<link:definition>2085536 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2025 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002573PerformanceRetail"
roleURI="http://vanguard/role/S000002573PerformanceTableDataRetail">
<link:definition>2085544 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2035 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002574PerformanceRetail"
roleURI="http://vanguard/role/S000002574PerformanceTableDataRetail">
<link:definition>2085554 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2045 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002574ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000002574ExpenseExampleNoRedemptionRetail">
<link:definition>2085565 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2045 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012762PerformanceRetail"
roleURI="http://vanguard/role/S000012762PerformanceTableDataRetail">
<link:definition>2085574 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2050 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000029700ShareholderFeesRetail"
roleURI="http://vanguard/role/S000029700ShareholderFeesRetail">
<link:definition>2085580 - Schedule - Shareholder Fees (Vanguard Target Retirement 2055 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012762ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000012762ExpenseExampleNoRedemptionRetail">
<link:definition>2085585 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2050 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012762ShareholderFeesRetail"
roleURI="http://vanguard/role/S000012762ShareholderFeesRetail">
<link:definition>2085587 - Schedule - Shareholder Fees (Vanguard Target Retirement 2050 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012762OperatingExpensesRetail"
roleURI="http://vanguard/role/S000012762OperatingExpensesRetail">
<link:definition>2085588 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2050 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000035453OperatingExpensesRetail"
roleURI="http://vanguard/role/S000035453OperatingExpensesRetail">
<link:definition>2085596 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2060 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000035453ShareholderFeesRetail"
roleURI="http://vanguard/role/S000035453ShareholderFeesRetail">
<link:definition>2085597 - Schedule - Shareholder Fees (Vanguard Target Retirement 2060 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000035453ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000035453ExpenseExampleNoRedemptionRetail">
<link:definition>2085599 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2060 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000029700PerformanceRetail"
roleURI="http://vanguard/role/S000029700PerformanceTableDataRetail">
<link:definition>2085603 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2055 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000029700OperatingExpensesRetail"
roleURI="http://vanguard/role/S000029700OperatingExpensesRetail">
<link:definition>2085619 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2055 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000029700ExpenseExampleNoRedemptionRetail"
roleURI="http://vanguard/role/S000029700ExpenseExampleNoRedemptionRetail">
<link:definition>2085622 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2055 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002574ShareholderFeesRetail"
roleURI="http://vanguard/role/S000002574ShareholderFeesRetail">
<link:definition>2085624 - Schedule - Shareholder Fees (Vanguard Target Retirement 2045 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002574OperatingExpensesRetail"
roleURI="http://vanguard/role/S000002574OperatingExpensesRetail">
<link:definition>2085625 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2045 Fund Retail)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002571ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000002571ShareholderFeesParticipant">
<link:definition>2085724 - Schedule - Shareholder Fees (Vanguard Target Retirement 2015 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002569ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000002569ExpenseExampleNoRedemptionParticipant">
<link:definition>2085729 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement Income Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002569OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000002569OperatingExpensesParticipant">
<link:definition>2085732 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement Income Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012758PerformanceParticipant"
roleURI="http://vanguard/role/S000012758PerformanceTableDataParticipant">
<link:definition>2085733 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2010 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012758ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000012758ShareholderFeesParticipant">
<link:definition>2085739 - Schedule - Shareholder Fees (Vanguard Target Retirement 2010 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012758OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000012758OperatingExpensesParticipant">
<link:definition>2085741 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2010 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002569PerformanceParticipant"
roleURI="http://vanguard/role/S000002569PerformanceTableDataParticipant">
<link:definition>2085747 - Schedule - Average Annual Total Returns (Vanguard Target Retirement Income Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012758ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000012758ExpenseExampleNoRedemptionParticipant">
<link:definition>2085749 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2010 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012759OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000012759OperatingExpensesParticipant">
<link:definition>2085761 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2020 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012759PerformanceParticipant"
roleURI="http://vanguard/role/S000012759PerformanceTableDataParticipant">
<link:definition>2085762 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2020 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012759ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000012759ShareholderFeesParticipant">
<link:definition>2085765 - Schedule - Shareholder Fees (Vanguard Target Retirement 2020 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002571PerformanceParticipant"
roleURI="http://vanguard/role/S000002571PerformanceTableDataParticipant">
<link:definition>2085767 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2015 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012759ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000012759ExpenseExampleNoRedemptionParticipant">
<link:definition>2085774 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2020 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002571OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000002571OperatingExpensesParticipant">
<link:definition>2085783 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2015 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002571ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000002571ExpenseExampleNoRedemptionParticipant">
<link:definition>2085786 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2015 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002569ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000002569ShareholderFeesParticipant">
<link:definition>2085789 - Schedule - Shareholder Fees (Vanguard Target Retirement Income Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012761OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000012761OperatingExpensesParticipant">
<link:definition>2085809 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2040 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012761ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000012761ShareholderFeesParticipant">
<link:definition>2085812 - Schedule - Shareholder Fees (Vanguard Target Retirement 2040 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012761ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000012761ExpenseExampleNoRedemptionParticipant">
<link:definition>2085816 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2040 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002574ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000002574ShareholderFeesParticipant">
<link:definition>2085827 - Schedule - Shareholder Fees (Vanguard Target Retirement 2045 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002574OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000002574OperatingExpensesParticipant">
<link:definition>2085830 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2045 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002573PerformanceParticipant"
roleURI="http://vanguard/role/S000002573PerformanceTableDataParticipant">
<link:definition>2085833 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2035 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012761PerformanceParticipant"
roleURI="http://vanguard/role/S000012761PerformanceTableDataParticipant">
<link:definition>2085838 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2040 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012762ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000012762ExpenseExampleNoRedemptionParticipant">
<link:definition>2085850 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2050 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012762PerformanceParticipant"
roleURI="http://vanguard/role/S000012762PerformanceTableDataParticipant">
<link:definition>2085853 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2050 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012762OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000012762OperatingExpensesParticipant">
<link:definition>2085861 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2050 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002574ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000002574ExpenseExampleNoRedemptionParticipant">
<link:definition>2085868 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2045 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012762ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000012762ShareholderFeesParticipant">
<link:definition>2085874 - Schedule - Shareholder Fees (Vanguard Target Retirement 2050 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002574PerformanceParticipant"
roleURI="http://vanguard/role/S000002574PerformanceTableDataParticipant">
<link:definition>2085879 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2045 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000035453ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000035453ExpenseExampleNoRedemptionParticipant">
<link:definition>2085884 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2060 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000035453OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000035453OperatingExpensesParticipant">
<link:definition>2085885 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2060 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000035453ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000035453ShareholderFeesParticipant">
<link:definition>2085888 - Schedule - Shareholder Fees (Vanguard Target Retirement 2060 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000029700ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000029700ExpenseExampleNoRedemptionParticipant">
<link:definition>2085902 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Target Retirement 2055 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000029700PerformanceParticipant"
roleURI="http://vanguard/role/S000029700PerformanceTableDataParticipant">
<link:definition>2085913 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2055 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000029700OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000029700OperatingExpensesParticipant">
<link:definition>2085915 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2055 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000029700ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000029700ShareholderFeesParticipant">
<link:definition>2085918 - Schedule - Shareholder Fees (Vanguard Target Retirement 2055 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002573ShareholderFeesParticipant"
roleURI="http://vanguard/role/S000002573ShareholderFeesParticipant">
<link:definition>2085921 - Schedule - Shareholder Fees (Vanguard Target Retirement 2035 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000012760PerformanceParticipant"
roleURI="http://vanguard/role/S000012760PerformanceTableDataParticipant">
<link:definition>2085926 - Schedule - Average Annual Total Returns (Vanguard Target Retirement 2030 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002573OperatingExpensesParticipant"
roleURI="http://vanguard/role/S000002573OperatingExpensesParticipant">
<link:definition>2085928 - Schedule - Annual Fund Operating Expenses  (Vanguard Target Retirement 2035 Fund Participant)</link:definition>
<link:usedOn>link:calculationLink</link:usedOn>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn></link:roleType>
<link:roleType
id="S000002573ExpenseExampleNoRedemptionParticipant"
roleURI="http://vanguard/role/S000002573ExpenseExampleNoRedemptionParticipant">
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nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000007076Member"
id="vanguard_C000007076Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000007077Member"
id="vanguard_C000007077Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000007072Member"
id="vanguard_C000007072Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000007071Member"
id="vanguard_C000007071Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000034437Member"
id="vanguard_C000034437Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000034438Member"
id="vanguard_C000034438Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000034439Member"
id="vanguard_C000034439Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000034440Member"
id="vanguard_C000034440Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000034441Member"
id="vanguard_C000034441Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000091317Member"
id="vanguard_C000091317Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="C000108861Member"
id="vanguard_C000108861Member"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"/>
<xs:element
name="StandardnPoors500IndexMember"
id="vanguard_StandardnPoors500IndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="BarclaysUSAggregateBondIndexMember"
id="vanguard_BarclaysUSAggregateBondIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="TargetIncomeCompositeIndexMember"
id="vanguard_TargetIncomeCompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2015CompositeIndexMember"
id="vanguard_Target2015CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2025CompositeIndexMember"
id="vanguard_Target2025CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2035CompositeIndexMember"
id="vanguard_Target2035CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2045CompositeIndexMember"
id="vanguard_Target2045CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="MSCIUSBroadMarketIndexMember"
id="vanguard_MSCIUSBroadMarketIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2050CompositeIndexMember"
id="vanguard_Target2050CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2040CompositeIndexMember"
id="vanguard_Target2040CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2030CompositeIndexMember"
id="vanguard_Target2030CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2020CompositeIndexMember"
id="vanguard_Target2020CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="Target2010CompositeIndexMember"
id="vanguard_Target2010CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
name="TargetRetirement2055CompositeIndexMember"
id="vanguard_TargetRetirement2055CompositeIndexMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
nillable="true"
xbrli:periodType="duration"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"
id="vanguard_ParticipantMember"
name="ParticipantMember"/>
<xs:element
nillable="true"
xbrli:periodType="duration"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"
id="vanguard_Participant2Member"
name="Participant2Member"/>
<xs:element
nillable="true"
xbrli:periodType="duration"
substitutionGroup="xbrli:item"
type="us-types:domainItemType"
id="vanguard_RetailMember"
name="RetailMember"/>
<xs:element
type="xbrli:pureItemType"
id="vanguard_ETFConversionFee"
name="ETFConversionFee"
substitutionGroup="xbrli:item"
nillable="true"
xbrli:periodType="duration"/>
<xs:element
type="xbrli:pureItemType"
id="vanguard_TransactionFeeOnPurchases"
name="TransactionFeeOnPurchases"
substitutionGroup="xbrli:item"
nillable="true"
xbrli:periodType="duration"/>
<xs:element
type="xbrli:pureItemType"
id="vanguard_TransactionFeeOnReinvestedDividends"
name="TransactionFeeOnReinvestedDividends"
substitutionGroup="xbrli:item"
nillable="true"
xbrli:periodType="duration"/>
<xs:element
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
name="SupplementTextBlock"
id="vanguard_SupplementTextBlock"
type="us-types:textBlockItemType"/>
<xs:element
abstract="true"
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
name="SupplementAbstract"
id="vanguard_SupplementAbstract"
type="xbrli:stringItemType"/>
<xs:element
type="xbrli:stringItemType"
id="vanguard_RedemptionFeeParenthetical"
name="RedemptionFeeParenthetical"
substitutionGroup="xbrli:item"
nillable="true"
xbrli:periodType="duration"/>
<xs:element
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
name="PurchaseFeeParenthetical"
id="vanguard_PurchaseFeeParenthetical"
type="xbrli:stringItemType"/>
<xs:element
name="BasedOnMarketMember"
id="vanguard_BasedOnMarketMember"
type="us-types:domainItemType"
substitutionGroup="xbrli:item"
xbrli:periodType="duration"
nillable="true"/>
<xs:element
type="xbrli:stringItemType"
id="vanguard_ComparativeBenchmark"
name="ComparativeBenchmark"
substitutionGroup="xbrli:item"
nillable="true"
xbrli:periodType="duration"/>
<xs:element
xbrli:periodType="duration"
nillable="true"
substitutionGroup="xbrli:item"
name="AquiredFundFeesExpensesExcludingAFFE"
id="vanguard_AquiredFundFeesExpensesExcludingAFFE"
type="xbrli:pureItemType"/></xs:schema>
