INDIAN OCEAN (Jan. 26, 2021) Hospital Corpsman 3rd Class Brandon Cheung, left, with Battalion Landing Team 1/4, 15th Marine Expeditionary Unit, leads Marines with BLT 1/4, 15th MEU, through a litter run during a tactical casualty care course aboard the amphibious transport dock ship USS Somerset (LPD 25). The Makin Island Amphibious Ready Group and the 15th MEU are conducting operations in the U.S. 6th Fleet area of responsibility. (U.S. Marine Corps photo by Lance Cpl. Brendan Mullin)