SAN DIEGO (July 24, 2020) Marine Corps Sgt. Maj. Daniel Mangrum, sergeant major of the 15th Marine Expeditionary Unit command element, embarks aboard the amphibious assault ship USS Makin Island (LHD 8) at Naval Base San Diego. Marines and Sailors aboard Makin Island are conducting training to increase Navy-Marine Corps interoperability in the eastern Pacific. The 15th MEU consists of the Command Element; the Aviation Combat Element comprised of Marine Medium Tiltrotor Squadron 164 (Reinforced); the Ground Combat Element comprised of Battalion Landing Team 1/4; and the Logistics Combat Element comprised of Combat Logistics Battalion 15. (U.S. Marine Corps photo by Lance Cpl. Mackenzie Binion)