ENDURANCE COURSE U.S. Navy Seabees assigned to the Naval Mobile Construction Battalion navigate a 3.4-mile endurance course at the U.S. Marine Corps Jungle Warfare Training Center at Camp Gonslaves, Okinawa, Japan, April 25, 2008. The six-day course is designed to refine a unit's patrol and combat skills in a jungle environment and develop small unit leaders. SHARE: Download: Full Size (0.11 MB) Credit: VIRIN: 259273-F-FKM68-310.jpg Photo Gallery