U.S. Marines assigned to Marine Corps Security Force Company Guantanamo Bay, help students from W.T. Sampson Elementary school run an obstacle course during Little Devil Dog Day at Naval Station Guantanamo Bay, Cuba, June 6, 2014. Little Devil Dog Day was annual event where base Marines and elementary school officials coordinate a day of themed activities for base first graders. (U.S. Navy photo by Mass Communication Specialist 2nd Class Scott Pittman/ Released)