U.S. Marines with Marine Heavy Helicopter Squadron (HMH) 462 receive an introduction course for the Integrated Training Exercise (ITX) at Marine Air Ground Combat Center Twentynine Palms, Calif., Jan. 19, 2015. The ITX introduction course informs Marines of the rules and regulations throughout the training environment. (U.S. Marine Corps photo by Lance Cpl. Travis Jordan 3rd MAW Combat Camera/Released)