A U.S. Navy sailor draws a cut line on a piece of timber. A U.S. Navy sailor from Naval Mobile Construction Battalion 1 draws a cut line on a piece of timber for a timber tower at Camp Shelby, Miss., on June 26, 2007. The battalion is participating in Operation Desert Heat, a graded field exercise that will assess the battalion's contingency construction capabilities. SHARE: Download: Full Size (0.02 MB) Credit: VIRIN: 159305-X-OIG26-388.jpg Photo Gallery