DIEGO GARCIA, British Indian Ocean Territory (March 17, 2021) U.S. Air Force service members supervise as contractors unload the COVID-19 vaccine from the plane at the air terminal onboard U.S. Navy Support Facility (NSF) Diego Garcia March 17, 2021. NSF Diego Garcia provides logistic, service, recreational and administrative support to U.S. and allied forces forward deployed to the Indian Ocean and Arabian Gulf. (U.S. Navy photo by Mass Communication Specialist Seaman Mariterese Merrique)