U.S. Soldiers connect a M998 High Mobility Multi-purpose Wheeled Vehicle (HMMWV) to a UH-60L Black Hawk during sling-load training in Colon, Panama, April 21, 2013. U.S. Soldiers from Arizona Arizona Army National Guard's 285th Assault Helicopter Battalion conducted sling-load training for military service members supporting Beyond The Horizon. Beyond the Horizon is a U.S. Southern Command-sponsored, U.S. Army South-led, humanitarian and civic assistance exercise occurring in Panama until late June 2013. (U.S. Army Photo by 1st Lt. Joseph McDaniel/Released)