Five Arizona Air National Guard F-16 Fighting Falcons soar over the Arizona desert during a training mission. Guardsmen based at the Tucson International Airport carry out a full-time mission to train U.S. and partner-nation fighter pilots. (U.S. Air Forc
Five Arizona Air National Guard F-16 Fighting Falcons soar over the Arizona desert during a training mission. Guardsmen based at the Tucson International Airport carry out a full-time mission to train U.S. and partner-nation fighter pilots. (U.S. Air Force photo/ Master Sgt. Jeffrey Allen/Released)