Vietnam and Taiwan also claim sovereignty over the Paracels but China controls the entire island chain after seizing it from the South Vietnam government in 1974. Beijing’s deployment of a drilling platform near Triton island in May 2014 led to a serious standoff with Hanoi and triggered an unprecedented wave of anti-China protests in Vietnam.
Triton Island, called Zhongjian Dao in Chinese, also serves as a base point that China uses to draw a straight baseline to claim its territorial waters around the Paracel Islands. A U.N. arbitration tribunal in 2016 rejected this claim and the United States challenges it with its freedom-of-navigation operations in the area.