UNARMED COMBAT TRAINING A U.S. Marine strikes a punching bag as part of green belt martial arts class hosted by the 3rd Marine Expeditionary Unit, 23rd Battalion in New Orleans, La., March 15, 2007. The course certifies the attendees as instructors in disciplined forms of unarmed combat. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 501795-E-FII27-034.jpg Photo Gallery