Spartans from 1st Platoon, Alpha Battery, 4th Battalion, 25th Field Artillery Regiment, 3rd Brigade Combat Team, 10th Mountain Division fire their M777 howitzer to calibrate on Forward Operating Base Lightning, Afghanistan, Jan. 15, 2014. The 4th Battalion, 25th Artillery Regiment are currently deployed to Regional Command East in support of Operation Enduring Freedom. (Photo courtesy of Regional Command-East)