Down for the Challenge Marines prepare to compete in a tug-of-war challenge during the I Marine Expeditionary Force Tomahawk Total Fitness Challenge at Marine Corps Base Camp Pendleton, Calif., May 13, 2026. The challenge is designed to build more resilient Marines and teams by purposefully developing physical, mental and spiritual domains of fitness while strengthening unit cohesion. SHARE: Download: Full Size (1.65 MB) Tags: physical fitness, training, marine corps Credit: Marine Corps Sgt. Calah Thompson VIRIN: 260513-M-DL962-9260.JPG Photo Gallery