A U.S. Marine with Kilo Company, 3rd Battalion, 25th Marine Regiment, 4th Marine Division assesses a casualty in a platoon attack on Range 410, an overhead fire infantry company training range, during Integrated Training Exercise 4-19 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., June 8, 2019. ITX 4-19 is a live-fire and maneuver combined arms exercise designed to train battalion and squadron-sized units in tactics, techniques, and procedures required to provide a sustainable and ready operational reserve for employment across the full spectrum of crisis and global engagement. (U.S. Marine Corps photo by Cpl. Tessa D. Watts)