The 140th Wing is a unit of the Colorado Air National Guard, stationed at Buckley Space Force Base, Aurora, Colorado. If activated to federal service, the Wing is gained by the United States Air Force Air Combat Command.

The Colorado Air National Guard (CO ANG) is the aerial militia of the State of Colorado, United States of America. It is, along with the Colorado Army National Guard, an element of the Colorado National Guard. The units of the Colorado Air National Guard are not in the normal United States Air Force or United States Space Force chain of command. They are under the jurisdiction of the Governor of Colorado through the office of the Colorado Adjutant General unless they are federalized by order of the President of the United States. The Colorado Air National Guard is headquartered in Centennial, and its commanders are currently Major General Laura Clellan as The Adjutant General (TAG) of Colorado and Brigadier General D. Michah Fesler as the Assistant Adjutant General for Air (ATAG-Air) and Commander, Colorado Air National Guard (COANG/CC).