INDIAN OCEAN (Jan. 19, 2021) U.S. Marine Corps Sgt. William Easter, an MV-22 Osprey flight line mechanic assigned to Marine Medium Tiltrotor Squadron 164 (Reinforced), 15th Marine Expeditionary Unit (MEU), screws a bolt into an engine from an Osprey aboard the amphibious assault ship USS Makin Island (LHD 8). The Makin Island Amphibious Ready Group and the 15th MEU are conducting operations in the U.S. 6th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 3rd Class Aaron Sperle)