Staff Sgt. Devon Jarvis runs a pre-flight test on a KC-10 Extender's aerial refueling systems prior to a return flight Sept. 3, 2010, to Joint Base McGuire-Dix-Lakehurst, N.J. Sergeant Jarvis and eight other crew members were on a humanitarian mission to help transport privately-donated winter clothing that will be distributed to villages and orphanages in and around Kabul, Afghanistan. Sergeant Jarvis is a 76th Air Refueling Squadron boom operator. (U.S. Air Force photo/Staff Sgt. Shawn J. Jones)