Airman 1st Class Christopher, Dragon Aircraft Maintenance Unit, installs a ‘remove before flight’ flag on a U-2 Dragon Lady in preparation for a post-flight inspection at an undisclosed location in Southwest Asia Feb. 9, 2015. Airmen with the Dragon AMU have been on a constant rotation here for about 11 years now and have played a pivotal role during many of the operations. Christopher is currently deployed from Beale Air Force Base, Calif. (U.S. Air Force photo/Tech. Sgt. Marie Brown)