Dedicated to Duty Marine Corps Gunnery Sgt. Louis Yacono reenlists during Service Level Training Exercise 4-25 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Aug. 8, 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 (1.65 MB) Tags: service, exercises, training, marine corps, service level training exercise, service level training exercise 4-25 Credit: Marine Corps Lance Cpl. Judith Ann Lazaro VIRIN: 250808-M-FC877-1012M.JPG Photo Gallery