509th Operations Group

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509th Operations Group
Shield of the 509th Operations Group
Active	9 December 1944 – present (79 years, 6 months) Detailed 12 March 1993 – present (as 509th Operations Group) 2 July 1948 – 16 June 1952 (as 509th Bombardment Group, Medium) 10 July 1946 – 2 July 1948 (as 509th Bombardment Group, Very Heavy) 9 December 1944 – 10 July 1946 (as 509th Composite Group)[1]
Country	United States
Branch	United States Air Force (18 September 1947 – present) United States Army ( Army Air Forces, 9 December 1944 – 18 September 1947)
Type	Wing Operations Group
Role	B-2 Combat and Training Operations
Size	3 squadrons
Part of	509th Bomb Wing
Garrison/HQ	Whiteman Air Force Base, Missouri
Tail code	WM
Engagements	World War II – Asiatic-Pacific Theater Air Offensive, Japan Eastern Mandates Western Pacific
Decorations	Air Force Outstanding Unit Award
Commanders
Current commander	Colonel Geoffrey M. Steeves [2]
Aircraft flown
Bomber	B-2A

The 509th Operations Group (509 OG) is the flying component of the United States Air Force 509th Bomb Wing (509 BW), assigned to Whiteman Air Force Base, Missouri. It is equipped with all 20 of the USAF's B-2 Spirit stealth bombers, flown by its 393rd Bomb Squadron. Its 13th Bomb Squadron, the training unit for the 509th, provides training in T-38 Talon trainers as well as in the 393rd's B-2 Spirits.

The 509 OG traces its history to the World War II 509th Composite Group (509 CG), which conducted the atomic bombings of Hiroshima and Nagasaki, Japan, in August 1945.

Redesignated the 509th Bombardment Group, Very Heavy in 1946, the group was one of the original ten bombardment groups of Strategic Air Command. The unit was also the host organization at Roswell Army Airfield, New Mexico in July 1947 during the alleged Roswell incident.

The 509th Bombardment Group was inactivated in 1952. In 1993, the unit was reactivated as the 509 OG, as part of the Objective Wing organization implementation of the 509th Bomb Wing.