While a C-17 Globemaster III flies overhead, a B1-B Lancer taxis on a runway ready to take-off on a combat mission Nov. 11, 2009, at an air base in Southwest Asia. Carrying the largest payload of guided and unguided weapons in the Air Force inventory, the multi-mission B-1 is the backbone of America's long-range bomber force. (U.S. Air Force photo/Staff Sgt. Robert Barney)