Fire Away Marines fire an M252 81 mm mortar system during Service Level Training Exercise 4-25 at Marine Corps Air-Ground Combat Center Twentynine Palms, Calif., July 12, 2025. The exercise provides a challenging, realistic training environment that produces integrated, combat-ready forces. SHARE: Download: Full Size (1.27 MB) Tags: exercises, training, marine corps, service level training exercise, service level training exercise 25 Credit: Marine Corps Lance Cpl. Judith Ann Lazaro VIRIN: 250712-M-FC877-1138K.JPG Photo Gallery