U.S. Army Staff Sgt. Chris Thornburg adjusts the sights on an Afghan soldier's M16 during zeroing on the Kabul Military Training Center, Afghanistan, March 17, 2009. Thornburg is assigned to Camp Alamo Mentor Group's Basic Warrior Training Branch and mentors Afghan recruits as they learn to use their new M16s. U.S. Army Staff Sgt. Chris Thornburg adjusts the sights on an Afghan soldier's M16 during zeroing on the Kabul Military Training Center, Afghanistan, March 17, 2009. Thornburg is assigned to Camp Alamo Mentor Group's Basic Warrior Training Branch and mentors Afghan recruits as they learn to use their new M16s. SHARE: Download: Full Size (2.39 MB) Tags: Photo Essays Credit: VIRIN: 527027-K-QOZ85-769.jpg Photo Gallery