DUSK DEPARTURE A UH-60 Black Hawk helicopter swiftly departs the flight line at dusk on Camp Taji, Iraq, Jan. 11, 2010. The helicopter is assigned to the 1st Cavalry Division's 1st Air Cavalry Brigade, which conducts aviation operations 24 hours a day, seven days a week, to support U.S. and Iraqi forces. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 901310-G-OLB34-223.jpg Photo Gallery