Marines with 1st Battalion, 12th Marine Regiment, attached to 1st Battalion, 3rd Marine Regiment, conduct security patrols during an Integrated Training Exercise aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif., July 14. ITX is conducted to enhance the integration and warfighting capability from all elements of the Marine Air Ground Task Force. (Photo by U.S. Marine Corps Lance Cpl. Clarence A. Leake/ Released)