U.S. Army Command Sgt. Maj. Chris Field provides security. U.S. Army Command Sgt. Maj. Chris Field provides security with an M14 Enhanced Battle Rifle in Dewagal Valley, Chawkay district, Kunar province, Afghanistan, on Sept. 26, 2010. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 784116-B-EZS03-155.jpg Photo Gallery