The first contingent of Tornado aircraft arrived at Holloman in March 1996. More than 300 German air force personnel are permanently assigned at Holloman to the TTC, the only unit of its kind in the United States. The German Air Force Flying Training Center activated on 31 March 1996, with German Air Force Chief of Staff Gen. Portz and U.S. Air Force Chief of Staff Gen. Michael Ryan present. The "Luftwaffe" has since stationed up to 800 personnel at Holloman for training exercises, due to limited training space in Europe.