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        <PersonNm>WILLIAM C EACHO</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROBERT L GALLUCCI</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BRUCE S GELB</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>LESLIE H GELB</PersonNm>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LEE H HAMILTON</PersonNm>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEPHEN P RANDOLPH</PersonNm>
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        <PersonNm>PAUL S SARBANES</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ROBIN B WRIGHT</PersonNm>
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      <Form990PartVIISectionAGrp>
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          <BusinessName>
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            <StateAbbreviationCd>DC</StateAbbreviationCd>
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      <OtherExpensesGrp>
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      <TotalLiabilitiesGrp>
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      <TotalNetAssetsFundBalanceGrp>
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      <ReconcilationRevenueExpnssAmt>-93147</ReconcilationRevenueExpnssAmt>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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      <FSAuditedInd>true</FSAuditedInd>
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        <CurrentTaxYearMinus2YearsAmt>8559576</CurrentTaxYearMinus2YearsAmt>
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        <CurrentTaxYearMinus1YearAmt>318491</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>526741</CurrentTaxYearAmt>
        <TotalAmt>24600663</TotalAmt>
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      <GrossInvestmentIncome170Grp>
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        <CurrentTaxYearMinus3YearsAmt>2921</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>19135</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3921</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>92791</CurrentTaxYearAmt>
        <TotalAmt>136511</TotalAmt>
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      <OtherIncome170Grp>
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        <CurrentTaxYearMinus1YearAmt>2500</CurrentTaxYearMinus1YearAmt>
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      <PublicSupportPY170Pct>0.65880</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Pt II Ln 10</FormAndLineReferenceDesc>
        <ExplanationTxt>Other Income Part II, Line 10 Description: Miscellaneous revenue 2013: 0. 2014: 0. 2015: 3023. 2016: 2500. 2017: 0.</ExplanationTxt>
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        <BookValueAmt>40130</BookValueAmt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt X, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization is exempt from income taxes under Internal Revenue Code 501 (c) (3) and applicable DC statutes. No provision for income taxes is required at December 31, 2017, as the Organization had no net unrelated business income. The Organization follows FASB ASC 740 Income Taxes the authoritative guidance relating to accounting for uncertainty in income taxes. These provisions provide consistent guidance for the accounting for uncertainty in income taxes recognized in an entity's financial statements and prescribe a threshold of "more likely than not" for recognition and derecognition of tax positions taken or expected to be taken in a tax return. The Organization performed an evaluation of uncertain tax positions for the year ended December 31, 2017, and determined that there were no matters that would require recognition in the financial statements or which may have any effect on its tax-exempt status. As of December 31, 2017, the statute of limitations for tax years 2014 through 2016 remains open with federal and DC authorities.</ExplanationTxt>
      </SupplementalInformationDetail>
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      <SolicitationOfGovtGrantsInd>X</SolicitationOfGovtGrantsInd>
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        <NetToOrganizationAmt>-175000</NetToOrganizationAmt>
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      <TotalNetToOrganizationAmt>-175000</TotalNetToOrganizationAmt>
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        <ContributionCnt>1</ContributionCnt>
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        <MethodOfDeterminingRevenuesTxt>Market Value</MethodOfDeterminingRevenuesTxt>
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      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>false</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
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    <IRS990ScheduleO documentId="00000007" softwareId="17005306">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The board has been provided a copy of the Form 990 for their review prior to the submission.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>All public documents are available upon request from the Executive Director, Diplomacy Center Foundation, 1990 K Street, NW Suite 315, Washington, DC 20006.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>