MDA Leadership
Within the Department of Defense, the Missile Defense Agency (MDA) is responsible for managing, directing, and executing the Missile Defense Program. The president and Congress rely on the MDA leadership to provide guidance to carry out the mission entrusted to them.
Director, Missile Defense Agency
| December 5, 2023 — present | Lt. Gen. Heath A. Collins, USAF |
Organizational Chart
MDA's current organizational chart.
Former Directors
The below list includes former directors of the Missile Defense Agency and its legacy organizations, the Ballistic Missile Defense Organization (BMDO) and the Strategic Defense Initiative Organization (SDIO).
| May 31, 2019 — July 31, 2023 | Vice Adm. Jon A. Hill, USN |
| 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 |