FLIGHT GUARD U.S. Air Force Staff Sgt. Gerardo Munoz guards a C-17 Globemaster III cargo aircraft, which will transport the last airmen out of Ali Air Base, Iraq, Dec. 18, 2011. Munoz is assigned to the 385th Air Expeditionary Group Security Forces, deployed from 319th Security Forces Squadron, Grand Forks Air Force Base, N.D. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 459880-Y-CIW84-972.jpg Photo Gallery