U.S. Marine Corps Pfc. Brandon White, a rifleman with Kilo Company, 3rd Battalion, 25th Marine Regiment, 4th Marine Division, sights in during a simulated exercise of clearing a trench during Integrated Training Exercise 4-19 aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., June 5, 2019. ITX 4-19 is an essential component of the MARFORRES training and readiness cycle. It serves as the principal exercise for assessing a unit’s capabilities. (U.S. Marine Corps photo by Lance Cpl. Preston L. Morris)