CAMP FOSTER, Okinawa (March 1, 2021) Hospitalman Dillon Botswell, a preventative medicine technician, preps syringes with the Moderna COVID-19 vaccine for U.S. Marines with Marine Rotational Force - Darwin at Okinawa Naval Hospital, Camp Foster, Okinawa, Japan, March 1, 2021. U.S. Marines attached to MRF-D who opted to receive the first COVID-19 vaccine attended a follow-on vaccination event to receive their second shot in preparation to depart to Australia. (U.S. Marine Corps photo by Sgt. Micha Pierce)