BIG LAKE, Alaska -- Paratroopers of the 1st Battalion (Airborne) 501st Infantry Regiment conduct a parachute training and water landing exercise at Big Lake, Alaska, July 22, 2011. Several hundred troopers from the battalion trained extensively in preparation for the maneuver, jumped from UH-60 helicopters, staged at a nearby airfield, into Big Lake and were brought safely to shore by rubber boats. (U.S. Air Force/Justin Connaher)
