U.S. Air Force Maj. Gen. John Cooper, Headquarters Air Combat Command director of logistics, and Airman Mason Wilhelm, 633rd Logistics Readiness Squadron fuels operator and distribution journeyman, cut the Air Force birthday cake at Langley Air Force Base, Va., Sept. 18, 2014. The Air Force was established in 1947, and U.S. Service members celebrated its 67th birthday throughout Department of Defense installations. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)