Soldiers with Bravo Troop, 3rd Battalion, 71st Calvary Regiment of 3rd Brigade Combat Team, 10th Mountain Division, fire their 120mm mortars during a live-fire at Forward Operating Base Lightning, in Paktia province, Afghanistan on Jan. 17, 2014. The purpose of the live-fire is to ensure they are able to rapidly fire their mortar system to defend their position in the event of an enemy attack. (Photo by U.S. Army Capt. John Landry 3rd Brigade Combat Team, 10th Mountain Division Public Affairs)