MISSION COMPLETE A CH-47 Chinook helicopter takes off after picking up U.S. Army soldiers upon completion of their mission at the Spera District Center, Khowst province, Afghanistan, May 17, 2011. The soldiers are assigned to the 1st Infantry Division's 3rd Brigade. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 304529-M-UUH27-675.jpg Photo Gallery