U.S. Soldiers with Hotel Troop, 6th Squadron, 4th Cavalry Regiment, 3rd Brigade Combat Team, standby as the UH-60 Black Hawk helicopter departs during medical evacuation training before strapping down the next litter of mock casualties to load at Kunduz province, Afghanistan, July 8, 2013. While deployed, Soldiers focus not only on maintaining skills, but improving them. The unit is from Fort Knox, Ky., and conducting operations in support of Operation Enduring Freedom. (U.S. Army photo by 1st Lt. Charles Morgan/Released)