Lance Cpl. Coy Allen, a rifleman with Bravo Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, demonstrates to his team members how to set a M117A1 trip flare during their annual training exercise on Camp Grayling, Mich., Aug. 11, 2020. The training and readiness manual ensures the Marine Corps will continue to improve its combat readiness by training more efficiently and effectively. (U.S. Marine Corps photo by Lance Cpl. Leslie Alcaraz)