U.S. Marines with 2nd battalion, 25 Marines, 4th Marine Division, Marine Forces Reserve, participate in the Tactical Training Control Exercise Group Mechanized Assault Course and Air Assault Course during Integrated Training Exercise 4-17 at the Marie Corps Air Ground Combat Center Twentynine Palms, California on June 19th, 2017. Marines with 2/25 used the TTCEG to prepare for their FINEX, the final training sequence for ITX. ITX 4-17 is a live-fire and maneuver combined arms exercise designed to train battalion and squadron-sized units in the 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 Lance Cpl. Imari J. Dubose)