Army Spc. James Rolf waits for orders to fire an M119A2 105 mm howitzer during a live-fire exercise on Joint Base Elmendorf-Richardson, Alaska, Jan. 11, 2016. Rolf is assigned to the 25th Infantry Division’s 2nd Battalion, 377th Parachute Field Artillery Regiment, 4th Infantry Brigade Combat Team. U.S. Air Force photo by Justin Connaher