543d Aircraft Control and Warning Group
The 543d Aircraft Control and Warning Group is a disbanded United States Air Force unit. It was last assigned to the 31st Air Division, Air Defense Command, stationed at Fort Snelling, Minnesota. It was inactivated on 10 February 1952. History. The unit was a Command and Control organization of General Surveillance radar squadrons providing for the air defense of the United States. The unit was inactivated due to an ADC reorganization, and its assigned radar squadrons were transferred to various Air Divisions.