A U.S. Soldier with the 511th Engineer Company, 326th Engineer Battalion, 36th Engineer Brigade escapes from a simulated CH-47 Chinook helicopter during extreme weather elements that include giant three-foot waves, a pounding downpour of rain and extremely high winds while earning his Ground Forces Water Survival Egress Training certification at the Allison Aquatics Training Facility, Fort Campbell, Ky., July 24, 2013. (U.S. Army photo by Staff Sgt. Thaddius S. Dawkins II/Released)