TWENTYNINE PALMS, CALIFORNIA, UNITED STATES, (September 1, 2026) - U.S. Marines with Golf Company, 2nd Battalion, 1st Marine Regiment, 1st Marine Division, prepare to fire an M136 AT4 light anti-armor weapon during a platoon-level urban assault as part of Service Level Training Exercise 4-26 at Marine Corps Air-Ground Combat Center Twentynine Palms, California, Sept. 1, 2026. SLTE is designed to be a challenging, realistic training exercise that produces combat-ready forces capable of operating as an integrated Marine Air-Ground Task Force across all domains of military operations. (U.S. Marine Corps photo via DOW)