RIVER CROSSING U.S. Army Sgt. 1st Class Robert Russell crosses the Tarnek River in Qalat City, Afghanistan, July 9, 2011. Russell, a platoon sergeant, is a member of Provincial Reconstruction Team Zabul's security force. Team members work with Afghan officials to to improve governance, stability and development throughout the province. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 091420-F-QMZ42-605.jpg Photo Gallery