Martial Challenge Marine Corps Lance Cpl. Omar Rojas, left, and Pfc. Gerardo DeLeon, take a Marine Corps martial arts program gray belt performance evaluation on board the USS Somerset, Sept. 11, 2019. SHARE: Download: Full Size (1.56 MB) Tags: Marine Corps, Physical Fitness Credit: Marine Corps Sgt. Tyler Harrison VIRIN: 190912-M-ZR239-0058A.JPG Photo Gallery