Green Flag West is an advanced, realistic, and relevant Air to Surface training exercise, preparing joint and coalition warfighters to meet combatant commander requirements across Air, Space, and Cyberspace. It is primarily conducted in conjunction with U.S. Army National Training Center exercises at Fort Irwin, California. It is a Joint exercise administered by the U.S. Air Force Warfare Center and Nellis Air Force Base through the 549th Combat Training Squadron.