U.S. Marines with 3rd Battalion, 23rd Marine Regiment, 4th Marine Division, Marine Forces Reserve, advance towards their support by fire position at Range 400 during Integrated Training Exercise (ITX) 4-22 at Marine Corps Air-Ground Combat Center, Twentynine Palms, Calif., July 23, 2022. Range 400 is used to conduct company-level live-fire training in a deliberate assault against prepared defensive positions. ITX is designed to provide large forces the opportunity to command and control their Marines through a live-fire program incorporating every element of the MAGTF. (U.S. Marine Corps photo by Lance Cpl. David Intriago)