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.
United States Air Force Security Forces
In June 1950 the Air Force began urgent operations focused on air base defense with the outbreak of the Korean War. A buildup of ground combat forces began. The center of this buildup was the expansion of the Air Force Air Police from 10,000 in July 1950 to 39,000 in December 1951. Still, one year into the war the Air Provost Marshal reported that "the Air Force is without policy or tactical doctrine for Air Base Ground Defense." In haste, Air Police serving as the cadre of this force were outfitted with armored vehicles, machine guns and recoilless rifles. Air base defense was officially implemented by Air Force Regulation (AFR) 355-4 on 3 March 1953. AFR 355-4 defined air base defense "as all measures taken by the installation commander to deny hostile forces access to the area encompassing all buildings, equipment, facilities, landing fields, dispersal areas and adjacent terrain." However, the regulation did not include provisions for sustained ground defense operations. Performance of this mission fell to the provisional base defense task forces to be organized and equipped like infantry. It was the Strategic Air Command's (SAC) October 1952 edition of the SAC Manual 205-2 that rejected the notion that the USAF's ground defense mission conflicted with Army functions. SAC officials felt that success of the Air Force mission might require point defense elements that the Army could not afford to protect, much less have the Air Force rely on the Army to come to the rescue. After the Korean War, General Curtis LeMay had the Air Police begin the Combat Arms Program, to better train airmen in the use of weapons.