The 27th Fighter Squadron is an operational unit within the United States Air Force (USAF). Established in 1940, it is part of the 35th Fighter Wing at Misawa Air Base, Aomori Prefecture, Japan. Initially, the squadron was primarily engaged in air defense duties during World War II and the Cold War era. In recent years, its primary aircraft have been the F-16 Fighting Falcon and the F-22 Raptor. The 27th Fighter Squadron plays a crucial role in maintaining air superiority as part of the U.S. military presence in the Asia-Pacific region.