Marines build teamwork, leadership skills, become Martial Arts InstructorsStory by Cpl. Elizabeth Case CAMP LEJEUNE, N.C. – Marines with various units from II Marine Expeditionary Force earned their Marine Corps Martial Arts Program instructor certification, July 27, 2015, aboard Camp Lejeune, N.C. After a 15-day course packed with physical challenges, students with Martial Arts Instructor Course 205-15 found growth on both a personal and professional level, according to Sgt.