Desert Blast Army Spc. Eric Hayden fires an M777A2 howitzer while Staff Sgt. Robert Hartner braces to handle the shock of firing at the National Training Center at Fort Irwin, Calif., March 5th, 2020. SHARE: Download: Full Size (2.16 MB) Tags: army Credit: Army Staff Sgt. Matthew Johnson VIRIN: 200306-A-SS153-1421Y.JPG Photo Gallery