U.S. Army soldiers set up an 81 mm mortar system during a live-fire demonstration.
U.S. Army soldiers from the 3rd Battalion, 21st Infantry Regiment set up an 81 mm mortar system during a live-fire demonstration for the Iraqi Army's Light Battalion, 20th Brigade, 5th Division at Forward Operating Base Normandy in Diyala, Iraq, on June 28, 2009.