Misawa Air Base is located in the northeast portion of the main Japanese island of Honshu in Aomori Prefecture (approximately 400 miles north of Tokyo). Misawa is the only combined, joint service installation in the western Pacific. It houses three U.S. military services (Army, Navy, and Air Force), as well as the Japan Self-Defense Forces. The base is home to 5,200 US military personnel, as well as 350 US civilian employees and 900 Japanese national employees.