PACIFIC OCEAN (Sept. 9, 2020) Hospital Corpsman 1st Class Xuejiao Thrash, a member of the medical training team aboard the amphibious assault ship USS Tripoli (LHA 7), observes a mass casualty drill in the ship's vehicle storage area, Sept. 9, 2020. Tripoli commissioned administratively July 15, 2020 and is en route to her homeport in San Diego. (U.S. Navy photo by Mass Communication Specialist 1st Class Peter Burghart)