5th Reconnaissance Squadron
Following World War II, the National Security Act of 1947 established the U.S. Air Force as a sister service of the Army and Navy. The concurrent establishment of major commands within the Air Force brought wholesale realignments, including creating new wings with subordinate groups and squadrons. The Air Force established the 9th Strategic Reconnaissance Wing on 25 April 1949 and activated it on 1 May. The Air Force also activated and redesignated the 9th Bomb Group and its subordinate squadrons, making them the 9th Reconnaissance Group, and the 1st, 5th and 99th Reconnaissance Squadrons. The 5th Reconnaissance Squadron's new home was Fairfield-Suisan (later Travis) AFB, California. For the next 11 months, squadron crewmembers flew RB-29s on visual, photographic, electronic, and weather reconnaissance missions.
Militia
The Militia Act of 1903 divided what had been the militia into what it termed the "organized" militia, created from portions of the former state guards to become state National Guard units, and the "unorganized" militia consisting of all males from ages 17 to 45, with the exception of certain officials and others, which is codified in . Some states, such as Texas, California, and Ohio, created separate state defense forces for assistance in local emergencies. Congress later established a system of "dual enlistment" for the National Guard, so that anyone who enlisted in the National Guard also enlisted in the U.S. Army. When the U.S. Air Force was established as an independent service in 1947, the National Guard was further divided into the Army National Guard and the Air National Guard. Under this construct, the 1933 defense act's "dual enlistment" facet was further amended so that enlisted soldiers and commissioned officers in the Army National Guard were also enlisted or commissioned in the Reserve Component of the U.S. Army. Enlisted airmen and commissioned officers in the Air National Guard were also enlisted or commissioned in the Air Reserve Component (ARC) of the U.S. Air Force.