Guests wait to board a C-17 Globemaster III at Africa's largest air show Sept. 20, 2014. A total force team of U.S. Air Force Airmen and U.S. Army Soldiers attended the Africa Aerospace & Defence Expo 2014 at Waterkloof Air Force Base, South Africa, to showcase the United States' commitment to its partnership with South Africa. (U.S. Air Force photo by Tech. Sgt. Austin M. May/Released)