U.S. Marines with 3rd Battalion, 23rd Marine Regiment, 4th Marine Division, Marine Forces Reserve, prepare to advance while conducting 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. Reserve Marines and Sailors have come together from across the nation to form an integrated Marine Air-Ground Task Force to take part in a live-fire, combined arms exercise that will better prepare Marine Forces Reserve in its mission to augment and reinforce the Active Component. (U.S. Marine Corps photo by Lance Cpl. David Intriago)