MDA Leadership
Within the Department of Defense, the Missile Defense Agency (MDA) is responsible for managing, directing, and executing the Ballistic Missile Defense (BMD) Program. The president and Congress rely on the MDA leadership to provide guidance to carry out the mission entrusted to them.
Organizational Chart
To learn how our leadership is organized, please view our organizational chart. For operational security reasons, we do not include the names of some personnel.
Director's Biography
Please click below to view the biography of the current director of the Missile Defense Agency.
| May 31, 2019 — present | Vice Adm. Jon A. Hill, USN |
Former Directors' Biographies
Please click on a name to view a biography of former directors of the Missile Defense Agency and its legacy organizations, the Ballistic Missile Defense Organization (BMDO) and the Strategic Defense Initiative Organization (SDIO).
| June 16, 2017 — May 31, 2019 | Lt. Gen. Samuel A. Greaves, USAF |
| Nov. 19, 2012 — June 16, 2017 | Vice Adm. James D. Syring, USN |
| Nov. 21, 2008 — Nov. 19, 2012 | Lt. Gen. Patrick J. O'Reilly, USA |
| July 2, 2004 — Nov. 21, 2008 | Lt. Gen. Henry A. Obering, USAF |
| June 14, 1999 — July 2, 2004 | Lt. Gen. Ronald T. Kadish, USAF |
| Aug. 1, 1996 — May 28, 1999 | Lt. Gen. Lester L. Lyles, USAF |
| Nov. 22, 1993 — May 31, 1996 | Lt. Gen. Malcolm R. O'Neill, USA |
| July 10, 1990 — Jan. 20, 1993 | Ambassador Henry F. Cooper |
| Feb. 1, 1989 — June 30, 1990 | Lt. Gen. George L. Monahan, Jr., USAF |
| March 27, 1984 — Jan. 31, 1989 | Lt. Gen. James A. Abrahamson, USAF |