U.S. Army Sgt. 1st Class George Brace helps soldiers sight in their M249 squad automatic weapons on Bagram Air Field, Afghanistan, March 26, 2012. The soldiers must calibrate their light machine guns prior to pushing out to their forward operating bases. Brace is assigned to the 1st Cavalry Division. U.S. Army Sgt. 1st Class George Brace helps soldiers sight in their M249 squad automatic weapons on Bagram Air Field, Afghanistan, March 26, 2012. The soldiers must calibrate their light machine guns prior to pushing out to their forward operating bases. Brace is assigned to the 1st Cavalry Division. SHARE: Download: Full Size (2.47 MB) Tags: photo essays Credit: VIRIN: 967044-K-YXW47-599.jpg Photo Gallery