Sgt. Thomas Pearson waters the ground to help compact the sand. U.S. Army Sgt. Thomas Pearson, assigned to 277th Engineers Company, 416th Engineering Brigade, waters the ground to help compact the sand near the Tigris River in Baghdad, Iraq, on Aug. 10, 2009. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 711673-A-DAH33-658.jpg Photo Gallery