Soldiers from Company B, 526th Brigade Support Battalion, 2nd Brigade Combat Team "STRIKE", 101st Airborne Division (Air Assault), test their 'swiss seat' while rappelling at U.S. Army Fort Campbell's Sabalauski Air Assault School, April 24, 2013. The Army's Air Assault School is a ten-day course that qualifies Soldiers to conduct air-assault helicopter operations, sling-load missions, fast roping and rappelling, aircraft orientation, and ends with a fast-paced, full-combat-load, 12-mile ruck-march. (U.S. Army photo by Sgt. Keith Rogers)