U.S. Airmen from the 375h Airlift Wing sit inside a C-17 Globemaster III aircraft during their return flight home to Scott Air Force Base, Ill., from Volk Field, Wisc., May 17, 2009. Active duty and reserve Airmen and Air National Guardsmen were participating in a weeklong training exercise at Volk Field in preparation for an operational readiness inspection in March 2010. (U.S. Air Force photo by Airman 1st Class Wesley Farnsworth/Released)