U.S. Army Staff Sgt. Francisco Rivera, left, an instructor

U.S. Army Staff Sgt. Francisco Rivera, left, an instructor at the Army Mountain Warfare School and U.S. Army Staff Sgt. Joseph Ferry, an explosive ordnance disposal specialist with the 21st Ordnance Company EOD (WMD) and student at the Army Mountain Warfare School act as safety's for another student climbing June 15, 2014, at Camp Ethan Allen Training Site, Jericho, Vt. One of the safety's jobs is to ensure the climber has the right amount of tension in the climbing system. (U.S. Army National Guard photo by Sgt. Ashley J. Hayes)