A U.S. Army noncommissioned officer prepares to lower the American flag during a transfer-of-authority ceremony at Observation Post Mace, as U.S. and Afghan National Army troops look on Kunar province, Afghanistan, Dec. 21, 2010. The soldiers are assigned to the 101st Airborne Division’s 1st Squadron, 32nd Cavalry Regiment, 1st Brigade Combat Team. OP Mace is the northernmost observation post in Afghanistan’s Kunar province, which borders Pakistan. U.S. Air Force photo by Capt. Peter Shinn