Exercise Red Flag is an advanced aerial combat training exercise hosted at Nellis Air Force Base, Nevada. Red Flag – Alaska is held at Eielson Air Force Base, Alaska, being a successor to the previous COPE THUNDER exercise series in the Western Pacific and Alaska. Since 1975, air crews from the United States Air Force (USAF), United States Navy (USN), United States Marine Corps (USMC), United States Army (USA) and numerous NATO or other allied nations' air forces take part in one of several Red Flag exercises held during the year, each of which is two weeks in duration.
Under the aegis of the United States Air Force Warfare Center (USAFWC) at Nellis, the Red Flag exercises, conducted in four to six cycles a year by the 414th Combat Training Squadron (414 CTS) of the 57th Wing (57 WG), are very realistic aerial war games. The purpose is to train pilots and other flight crew members from the U.S., NATO and other allied countries for real air combat situations. This includes the use of "enemy" hardware and live ammunition for bombing exercises within the adjacent Nevada Test and Training Range (NTTR).
The mission of the 414th Combat Training Squadron (Red Flag) is to maximize the combat readiness and survivability of participants by providing a realistic training environment and a pre-flight and post-flight training forum that encourages a free exchange of ideas. To accomplish this, combat units from the United States and its allied countries engage in realistic combat training scenarios carefully conducted within the Nellis Range Complex. The Nellis Range complex is located northwest of Las Vegas and covers an area of 60 nautical miles (111 km) by 100 nautical miles (190 km), approximately half the area of Switzerland. This space allows the exercises to be on a very large scale.