Loading Up Marine Corps Cpl. Gunner Legrande reloads an M142 high-mobility artillery rocket system during Service Level Training Exercise 4-25 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Aug. 11, 2025. The exercise was designed to provide a challenging, realistic training environment to produce combat-ready forces capable of operating as an integrated Marine air-ground task force across all domains of military operations. SHARE: Download: Full Size (1.64 MB) Tags: exercises, training, marine corps, service level training exercise, service level training exercise 4-25 Credit: Marine Corps Lance Cpl. Judith Ann Lazaro VIRIN: 250811-M-FC877-1041M.JPG Photo Gallery