Office Holders
| Name | Tenure | SecDef(s) Served Under | President(s) Served Under |
|---|---|---|---|
| Assistant Secretary of Defense (International Security Policy) | |||
| Richard N. Perle | August 5, 1981 – May 8, 1987 | Caspar W. Weinberger | Ronald Reagan |
| Frank J. Gaffney, Jr. (Acting) | May 8, 1987 – November 1987 | Caspar W. Weinberger | Ronald Reagan |
| Ronald F. Lehman | February 18, 1988 – May 11, 1989 | Frank C. Carlucci III William H. Taft IV (Acting) Richard B. Cheney |
Ronald Reagan George H. W. Bush |
| Stephen J. Hadley | June 23, 1989 – January 20, 1993 | Richard B. Cheney | George H. W. Bush |
| Assistant Secretary of Defense (Nuclear Security and Counterproliferation) | |||
| Ashton B. Carter | June 30, 1993 – June 13, 1994 | Leslie Aspin, Jr. William J. Perry |
William Clinton |
| Assistant Secretary of Defense (International Security Policy) | |||
| Ashton B. Carter | June 13, 1994 – September 14, 1996 | William J. Perry | William Clinton |
| Franklin C. Miller (Acting) | September 14, 1996–1998 | William J. Perry William S. Cohen |
William Clinton |
| Position Vacant | 1998–2001 | William S. Cohen | William Clinton |
| J.D. Crouch II | August 6, 2001 – October 31, 2003 | Donald H. Rumsfeld | George W. Bush |
| Peter C. W. Flory | August 2, 2005 – December 2006 | Donald H. Rumsfeld | George W. Bush |
| Assistant Secretary of Defense (Global Security Affairs) | |||
| Joseph A. Benkert | July 23, 2008 – January 20, 2009 | Robert M. Gates | George W. Bush |
| Assistant Secretary of Defense (Global Strategic Affairs) | |||
| Michael Nacht | May 2009 – June 1, 2010 | Robert M. Gates | Barack Obama |
| Assistant Secretary of Defense (Global Strategic Affairs) | |||
| Madelyn R. Creedon | August 2, 2011 – | Leon E. Panetta | Barack Obama |
Read more about this topic: Defense Technology Security Administration
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