Airman 1st Class Rodrick Defreitas prepares to refuel a C-17 Globemaster III, at Joint Base Charleston, S.C., April 18, 2012. The C-17 can hold up to 35,546 gallons of fuel and can carry a maximum of 17,900 pounds and land on runways as short as 3,500 feet which is crucial to resupplying remote areas from the air or ground. Defreitas is from the 628th Logisitcs Readiness Squadron, Fuels Mobility Support Flight. (U.S. Air Force photo/ Staff Sgt. Nicole Mickle)

Airman 1st Class Rodrick Defreitas puts his headset on prior to refueling a C-17 Globemaster III at Joint Base Charleston, S.C., April 18, 2012. The C-17 can hold up to 35,546 gallons of fuel and can carry a maximum of 17,900 pounds and land on runways as short as 3,500 feet which is crucial to resupplying remote areas from the air or ground. Defreitas is from the 628th Logistics Readiness Squadron, Fuels Mobility Support Flight. (U.S. Air Force photo/Staff Sgt. Nicole Mickle)

Senior Airman Rafael Lopez-Martinez reviews the refueling checklist prior to refueling a C-17 Globemaster III, at Joint Base Charleston, S.C., April 18, 2012. The C-17 can hold up to 35,546 gallons of fuel and can carry a maximum of 17,900 pounds and land on runways as short as 3,500 feet which is crucial to resupplying remote areas from the air or ground. Lopez-Martinez is from the 437th Aircraft Maintenance Squadron Gold AMU. (U.S. Air Force photo/Staff Sgt. Nicole Mickle)

Senior Airman Rafael Lopez-Martinez pulls the hose towards a C-17 Globemaster III before refueling, at Joint Base Charleston, S.C., April 18, 2012. The C-17 can hold up to 35,546 gallons of fuel and can carry a maximum of 17,900 pounds and land on runways as short as 3,500 feet which is crucial to resupplying remote areas from the air or ground. Lopez-Martinez is from the 437 Aircraft Maintenance Squadron Gold AMU. (U.S. Air Force photo/Staff Sgt. Nicole Mickle)

Senior Airman Rafael Lopez-Martinez moves the hose into place before refueling a C-17 Globemaster III, at Joint Base Charleston, S.C., April 18, 2012. The C-17 can hold up to 35,546 gallons of fuel and can carry a maximum of 17,900 pounds and land on runways as short as 3,500 feet which is crucial to resupplying remote areas from the air or ground. Lopez-Martinez is from the 437 Aircraft Maintenance Squadron Gold AMU. (U.S. Air Force photo/Staff Sgt. Nicole Mickle)