Marines maneuver in an all-terrain vehicle as a part of Integrated Training Exercise 2-18 at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Jan. 23, 2018. The Marines are assigned to 3rd Reconnaissance Battalion, 3rd Marine Division, 3rd Marine Expeditionary Force. The purpose of the exercise is to create a challenging, realistic training environment that produces combat-ready forces. Marine Corps photo by Pfc. William Chockey