Midshipman 2nd-class Zach Coffman, of Charlottesville, Va., encourages plebes during the tug-of-war at the annual Sea Trials exercise at the U.S. Naval Academy in Annapolis, Md., on Tuesday, May 12, 2015. The event, modeled after the Marine Corps’ Crucible and Navy’s Battle Stations events, runs over 14 hours and tests the plebes’ physical and mental endurance.