Marines with 3rd Platoon, Lima Company, 3rd Battalion, 25th Marines Regiment, 4th Marine Division, Marine Forces Reserve, patrol the area evading enemy fire during the 2015 Integrated Training Exercise at Twentynine Palms, Calif., June 12, 2015. At ITX, Marines must overcome stressors that would be present in a combat situation or on deployment. (U.S. Marine Corps photo by Lance Cpl. Phillip Patten)