Dozer Digging U.S. Army Cpl. Jonathan Norris operates a T9 Dozer to dig a hull-down position for an M1A2 Abrams Tank during Exercise Peace Sentinel at Novo Selo Training Center, Bulgaria, Nov. 23, 2015. Norris is a heavy equipment operator assigned to the 3rd Infantry Division’s 5th Squadron, 7th Cavalry Regiment. U.S. Army photo by Staff Sgt. Steven M. Colvin SHARE: Download: Full Size (1.67 MB) Tags: peace sentinel, operation atlantic resolve, u.s. army, photo essays, bulgaria, nato, t9 dozer, heavy equipment operator, novo selo, all images Credit: Army Staff Sgt. Steven Colvin VIRIN: 151123-A-HO673-760.JPG Photo Gallery