evidence: The Paracel Islands, also known as the Xisha Islands (simplified Chinese: 西沙群岛; traditional Chinese: 西沙群島; pinyin: xīshā qúndǎo; lit. 'West Sand Archipelago')[2] and the Hoàng Sa Archipelago (Vietnamese: Quần đảo Hoàng Sa, lit. 'Yellow Sand Archipelago'), are a disputed archipelago in the South China Sea under de facto administration by the People's Republic of China since its defeat of South Vietnam in the 1974 Battle of the Paracel Islands. [...] UNCLOS EEZ [edit]The Paracel islands are claimed by both China and Vietnam and the majority of those islands lie within 200 NM of both China's and Vietnam's geographic baselines under the Law of the Sea.[70] [...] - In 1951, at the international Treaty of San Francisco conference, Vietnam's representative claimed that both the Paracels and Spratlys are territories of Vietnam, and was met with no challenge from all nations at the event.[87] However, neither the PRC nor the ROC participated in the conference. Separately, the ROC negotiated and signed its own treaty with Japan regarding the islands on April 29, 1952.[57][122]