SOUTH CHINA SEA (Dec. 11, 2020) Marine Corps Sgt. Christopher Tenney, an aerial observer with Marine Medium Tiltrotor Squadron 164 (Reinforced), 15th Marine Expeditionary Unit, observes U.S. Navy Landing Craft, Air Cushions 39 and 79 assigned to Assault Craft Unit 5 return to the amphibious transport dock ship USS Somerset (LPD 25) during Cooperation Afloat Readiness and Training (CARAT) Singapore. This year marks the 26th iteration of CARAT, a multinational exercise designed to enhance U.S. and partner navies' abilities to operate together in response to traditional and non-traditional maritime security challenges in the Indo-Pacific region. (U.S. Marine Corps photo by Staff Sgt. Kassie McDole)