Marines undergoing a Helicopter Rope Suspension Training Master’s Course hang from a UH-1Y Huey helicopter during a special patrol insertion and extraction rigging exercise at landing zone Westfield aboard Marine Corps Air Station Kaneohe Bay, Hawaii, May 13, 2014. The HRST Master’s Course, hosted by Special Operations Training Group, III Marine Expeditionary Force, based in Okinawa, Japan, is a 10-day course which certifies U.S. service members the ability to land on the ground quickly in situations where aircraft may have difficulty landing. Soldiers from Schofield Barracks, Hawaii, also participated in the certification training. (U.S. Marine Corps photo by Lance Cpl. Matthew Bragg)