Airmen from the 28th Aircraft Maintenance Squadron and 28th Logistics Readiness Squadron prepare to re-fuel a B-1 bomber during an Operational Readiness Exercise at Ellsworth Air Force Base, S.D., Feb. 24, 2012. The refueling trucks can carry up to 6,000 gallons of fuel, while the B-1 bomber is capable of carrying approximately 265,000 pounds of fuel. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)