On 1 May 1996, the "Luftwaffe" established the German Air Force Tactical Training Center (TTC) in concert with the United States Air Force 20th Fighter Squadron at Holloman Air Force Base in New Mexico, which provides aircrew training in the F-4F Phantom II. The TTC serves as the parent command for two German air crew training squadrons. The F-4 Training Squadron oversees all German F-4 student personnel affairs and provides German instructor pilots to cooperate in the contracted F-4 training program provided by the U.S. Air Force (20th Fighter Squadron). A second TTC unit, the Tornado Training Squadron, provides academic and tactical flying training, by German air force instructors, for German Tornado aircrews.