The 113th Wing (113 WG) is a unit of the District of Columbia Air National Guard, stationed at Joint Base Andrews, Camp Springs, Maryland. If activated to federal service, the Wing is gained by the United States Air Force Air Combat Command. The 121st Fighter Squadron assigned to the Wings 113th Operations Group, is a descendant organization of the 121st Observation Squadron, established on 10 July 1940. It is one of the 29 original National Guard Observation Squadrons of the United States Army National Guard formed before World War II