Johnson South Reef

Spratly Islands
Part of a series on the
Spratly Islands military occupations map
Related articles
Spratly Islands dispute Territorial disputes in the South China Sea Philippines and the Spratly Islands Dangerous Ground (South China Sea) Great Wall of Sand History of the Spratly Islands List of maritime features in the Spratly Islands List of airports in the Spratly Islands Vietnamese DK1 rigs Royal Malaysian Navy Offshore Bases Republic of Morac-Songhrati-Meads Free Territory of Freedomland
Confrontations
Southwest Cay incident (1975) East Sea Campaign (1975) Johnson South Reef skirmish (1988)
Military occupations
Occupied by Brunei Louisa Reef-Semarang Barat Kecil Reef Occupied by China (PRC) Cuarteron Reef, Huayang Reef Fiery Cross Reef, Yongshu Reef Gaven Reefs, Nanxun Reef and Xinan Reef Hughes Reef, Dongmen Reef Johnson South Reef, Chigua Reef Mischief Reef, Meiji Reef Subi Reef, Zhubi Reef Occupied by Malaysia Ardasier Reef, Ubi Reef Dallas Reef, Laya Reef Erica Reef, Siput Reef Investigator Shoal, Peninjau Shoal Mariveles Reef, Mantanani Reef Swallow Reef, Layang-Layang Island Occupied by the Philippines Commodore Reef, Rizal Reef Flat Island, Patag Island Irving Reef, Balagtas Reef Lankiam Cay, Panata Island Loaita Cay, Melchora Aquino Island Loaita Island, Kota Island Nanshan Island, Lawak Island Northeast Cay, Parola Island Second Thomas Shoal, Ayungin Shoal Thitu Island, Pagasa Island West York Island, Likas Island Occupied by Taiwan (ROC) Centre Cay, Zhongzhou Reef Itu Aba Island, Taiping Island Occupied by Vietnam Amboyna Cay, An Bang Island Bombay Castle, Ba Ke Collins Reef, Co Lin Reef Cornwallis South Reef, Nui Le Reef Ladd Reef, Lat Reef Namyit Island, Nam Yet Island Sand Cay, Son Ca Island Sin Cowe Island, Sinh Ton Island Southwest Cay, Song Tu Tay Island Spratly Island, Truong Sa Island Unoccupied Half Moon Shoal Luconia Shoals Northeast Investigator Shoal Royal Captain Shoal Sabina Shoal Western Reef Whitsun Reef
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Johnson South Reef or Chigua Reef (Tagalog: Mabini; Chinese: 赤瓜礁; pinyin: Chigua Jiao; Vietnamese: Đá Gạc Ma) is a reef in the Spratly Islands in the South China Sea. It is contiguous with Vietnam-occupied Collins Reef which lies 4 miles (6 km) away northwest. Naturally above water only at low tide, but some sources say that many rocks are above water at high tide. This is the site of Johnson South Reef Skirmish in 1988, fought by China and Vietnam which resulted to more than 70 Vietnamese deaths.^[1] This reef is also being claimed by the Philippines and Vietnam.