Mississippi Army National Guardsmen fire a 120 mm sabot round from an M1A1 Abrams main battle tank's gun during a live-fire exercise at the National Training Center, Fort Irwin, Calif., June 9, 2017. The soldiers are assigned to the 155th Armored Brigade Combat Team, 2d Battalion, 198th Armored Regiment. Mississippi National Guard photo by Staff Sgt. Shane Hamann