Royal Canadian Air Force maintainers prepare to fill a fuel bladder inside a C-130 Globemaster III aircraft for delivery to Canadian Forces Station Alert Sept. 30. The resupply of CFS Alert was part of Operation Boxtop, a bi-annual mission to resupply Canadian outposts to assist them in sustaining the harsh Arctic winters. (U.S. Air Force photo/Tech. Sgt. Jason Brumbaugh)