Keywords: u.s. air force usairforce afghanistan bagram parwan province parwanprovince air force airforce operation enduring freedom operationenduringfreedom usa army united states army unitedstatesarmy uh-60 uh60 dustoff blackhawk sunset oef isaf nato helicopter creative commons royalty free public domain photo photograph digital matt hecht getty reuters ap public domain publicdomain royalty free royaltyfree military aircraft aviation combat iraq war operation iraqi freedom operationiraqifreedom f-16 f16 fighting falcon fightingfalcon strike eagle strikeeagle sunrise air force one airforceone red flag alaska redflagalaska green flag east combat eastcombat aviation pilot pilots military aviationpilotpilotsmilitary pilot helo rotary wing fixed wing fixedwing jet fighter plane airplane vehicle rotor blade outdoor A U.S. Army UH-60 Blackhawk helicopter prepares for takeoff at Bagram Airfield, Afghanistan, on Dec 4, 2011. U.S. Air Force photo/Tech. Sgt. Matt Hecht A U.S. Army UH-60 Blackhawk helicopter prepares for takeoff at Bagram Airfield, Afghanistan, on Dec 4, 2011. U.S. Air Force photo/Tech. Sgt. Matt Hecht |