 Aomori Prefecture is host to the Misawa Air Base, the only combined, joint U.S. service installation in the western Pacific servicing Army, Navy, and Air Force, as well as the Japan Self-Defense Forces.On 20 February 2018 a U.S. Air Force F-16 fighter jet caught fire in flight.The pilot dumped two fuel tanks into Lake Ogawara in eastern Aomori Prefecture.