WELDING TECHNIQUES U.S. Army Sgt. Jack Smith, right, demonstrates proper welding techniques to U.S. Army Spc. Winston Stockman while working on metal shelving on Bagram Airfield in Afghanistan's Parwan province, Jan. 23, 2014. Smith, an interior electrician, and Stockman, a construction equipment repairer, are assigned to the Alabama Army National Guard's 1151st Engineer Company. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 992388-N-DFS05-992.jpg Photo Gallery