Silent Drill Platoon - U.S. Marines with the United States Marine Corps Silent Drill Platoon, Battle Color Detachment, Marine Barracks Washington, D.C., perform during the Battle Color Ceremony at the Paige Field house on Camp Pendleton, Calif., March 15, 2018. The ceremony featured “The Commandant’s Own," the United States Marine Drum & Bugle Corps, the Silent Drill Platoon, and the Official Color Guard of the Marine Corps. (U.S. Marine Corps photo Pfc. Drake Nickels)

U.S. Marine Corps Gunner Gilbert H. Bolton (Ret.) - U.S. Marine Corps Gunner Gilbert H. Bolton (Ret.) was born in Portsmouth, Ohio and enlisted in the Marine Corps in 1959. He served as an infantry Marine and officer until he retired in 1991 at the age of 50. During his time in the Marine Corps, Bolton rose through the ranks from private to an infantry weapons officer, also known as a Marine Gunner. A Marine Corps Gunner is a technical expert of all Marine Corps weapons systems, and their employment. (Photo courtesy of Gilbert H. Bolton)

U.S. Marines walk off the bus to start their check-in process for Marine Combat Training at the School of Infantry - West on Camp Pendleton, Calif., March 6, 2018. This marks the first male-female integrated Marine Combat Training company on the West Coast. - U.S. Marines walk off the bus to start their check-in process for Marine Combat Training at the School of Infantry - West on Camp Pendleton, Calif., March 6, 2018. This marks the first male-female integrated Marine Combat Training company on the West Coast.