Maj. Gen. Burke Whitman (left), commanding general of 4th Marine Division, and Col. Steven White (right), commanding officer of 23rd Marine Regiment, 4th MARDIV, observe unit leaders discuss tactics and maneuvers for the final exercise of 1st Battalion, 23rd Marines, 4th MARDIV, during Integrated Training Exercise 4-18, aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif., June 15, 2018. ITX 4-18 provides Marine Air-Ground Task Force elements an opportunity to undergo service-level competency assessments so that they can seamlessly integrate with active duty Marines in the event of a crises that requires a rapid response. (U.S. Marine Corps photo by Cpl. Dallas Johnson/Released)