U.S. Marines with 1st Battalion, 23rd Marine Regiment, 4th Marine Division provide support by fire with an M240 machine gun during Range 400 as part of Integrated Training Exercise 3-25 (ITX 3-25) on Marine Corps Air Ground Combat Center, Twentynine Palms, California, June 10, 2025. ITX is a critical Marine Air-Ground Task Force exercise for the Marine Forces Reserve’s training cycle, confirming unit readiness through live-fire and combined arms integration. (U.S. Marine Corps photo by Staff Sgt. Scott Jenkins)