PRECISION AIM U.S. Army Spc. Joshua Barrios, right, and Pfc. Aaron Wilson, left, set the aim of their 120 mm mortar system on Camp Clark, Afghanistan, Feb. 8, 2012. Barrios and Wilson are assigned to Headquarters Troop, 1st Squadron, Airborne, 40th Cavalry Regiment. The mortar teams were testing their systems to use new precision guided munitions. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 625905-I-PYR98-075.jpg Photo Gallery