Joseph Carroll (DIA)
When the U.S. Air Force was established as a separate executive department under the National Security Act of 1947, Secretary of the Air Force W. Stuart Symington, requested FBI Director J. Edgar Hoover to loan General Carroll to the services to organize a U.S. Air Force agency for investigative and counterintelligence functions. He organized and directed this new organization, the AFOSI, along the lines of the FBI rather than the U.S. Army's Criminal Investigation Command (USACIDC or CID). General Carroll was tendered a commission as a colonel, U.S. Air Force Reserve, January 12, 1948. He was ordered to active duty in the grade of brigadier general May 6, 1948, and promoted to major general August 11, 1950.
First Air Force
One of the four original pre-World War II numbered air forces during the existence of the United States Army Air Corps, 1 AF was activated on 18 December 1940, at Mitchel Field, Long Island, New York with a mission of air defense of the Northeastern United States and Great Lakes regions. During the war, its primary mission became the organization and training of combat units prior to their deployment to the overseas combat air forces.