noun
US military aircraft
Refers to any aircraft operated by the United States armed forces, including planes, helicopters, and drones.
沖縄の上空を米軍機が飛行している。
US military aircraft are flying over Okinawa.
自衛隊機 refers specifically to aircraft of the Japan Self-Defense Forces, contrasting with 米軍機.
Compound of 米 (べい, 'America'), 軍 (ぐん, 'military'), and 機 (き, 'aircraft').