DIEGO GARCIA, British Indian Ocean Territory (March 2, 2021) Sailors take the E-6 Advancement Exam onboard U.S. Navy Support Facility (NSF) Diego Garcia, March 2, 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)