PERIMETER PATROL As seen through a night-vision device, U.S. Army Staff Sgt. Chad Melanson performs a night patrol of the perimeter of Camp Wright in Asadabad, Afghanistan, Jan. 24, 2010. Melanson is a Kunar Provincial Reconstruction Team and security forces member assigned to the Nevada National Guard’s 1st Squadron, 221st Calvary Regiment. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 845256-M-UQZ90-988.jpg Photo Gallery