Obstacle Effort Marines go through an obstacle course during a Marine Corps Martial Arts Program class at Camp Pendleton, Calif., Jan. 19, 2018. More than 100 Marines assigned to multiple units participated in the class. Marine Corps photo by Lance Cpl. Betzabeth Y. Galvan SHARE: Download: Full Size (1.64 MB) Credit: Lance Cpl. Betzabeth Galvan VIRIN: 180119-M-ZD670-0145C.JPG Photo Gallery