East Reef East Reef is a rock located in the Spratly Islands that hosts three Vietnamese outposts. Vietnam first took possession of the feature in 1988. U.S. Board of Geographic Names: East ReefChina: Dong Jiao, 东礁Philippines: Silangang Quezon ReefTaiwan: Dong Jiao, 東礁Malaysia: Terumbu SilanganVietnam: Đá Đông Occupied by: VietnamLegal Status: RockGPS: 08° 49' 30" N, 112° 36' 00" E Overview Image East Reef Overview East Reef 1 January 24, 2017 East Reef 2 May 22, 2021 January 24, 2017 East Reef 3 December 18, 2016 January 24, 2017 Analysis of Outpost Vietnam Builds Up its Remote Outposts