Secretaries of Defense


James N. Mattis
Donald Trump Administration
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Ashton B. Carter
Barack Obama Administration
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Chuck Hagel
Barack Obama Administration
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Leon E. Panetta
Barack Obama Administration
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Robert M. Gates
George W. Bush / Barack Obama Administration
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Donald H. Rumsfeld
George W. Bush Administration
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William S. Cohen
William J. Clinton Administration
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William J. Perry
William J. Clinton Administration
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Leslie Aspin
William J. Clinton Administration
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Richard B. Cheney
George H.W. Bush Administration
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Frank C. Carlucci
Ronald Reagan Administration
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Caspar W. Weinberger
Ronald Reagan Administration
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Harold Brown
James Carter Administration
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Donald H. Rumsfeld
Gerald Ford Administration
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James R. Schlesinger
Richard Nixon / Gerald Ford Administration
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Elliot L. Richardson
Richard Nixon Administration
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Melvin R. Laird
Richard Nixon Administration
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Clark M. Clifford
Lyndon Johnson Administration
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Robert S. McNamara
John F. Kennedy / Lyndon Johnson Administration
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Thomas S. Gates, Jr.
Dwight D. Eisenhower Administration
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Neil H. McElroy
Dwight D. Eisenhower Administration
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Charles E. Wilson
Dwight D. Eisenhower Administration
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Robert A. Lovett
Harry S. Truman Administration
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George C. Marshall
Harry S. Truman Administration
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Louis A. Johnson
Harry S. Truman Administration
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James V. Forrestal
Harry S. Truman Administration
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