BAGRAM AIRFIELD, Afghanistan—Staff Sgt. Chase Dowd and Staff Sgt. Mike Dereu refill their de-icing truck at Bagram Airfield, Afghanistan, Jan. 5, 2012. Dowd and Dereu are in the 455th Expeditionary Aircraft Maintenance Squadron. The truck was filled at a de-icing station constructed by the 455th Expeditionary Civil Engineering Squadron. (U.S. Air Force photo/Airman 1st Class Ericka Engblom)