Captain Pat Farrell performs a preflight check of a C-17 July 3, 2006 at a forward operating base in Southwest Asia prior to flying an airdrop mission. Captain Farrell is deployed from Charleston AFB and assigned to the 816th Expeditionary Airlift Squadron, one of two C-17 squadrons in the area of responsibility now deployed in rotation periods similar to air and space expeditionary force deployments. (U.S. Air Force photo / Tech. Sgt. Chuck Marsh)