U.S. Air Force airmen jump from a C-17 Globemaster III aircraft during a certification course for drop zone control officers in Alamo, Nev., on May 12, 2011. The airmen jumpers are assigned to the 820th Rapid Engineer Deployable Heavy Operational Repair Squadron Engineers, also known as the Red Horse Squadron. Airmen assigned to the 414th Combat Search and Rescue Squadron provided the training.