赤瓜礁海战,中国完胜1975年越南统一之前,越共曾明确表示南沙群岛是中国的领土。时至今日,仍然有不少的外国学者都认为,南沙是中国领土的一个强力证据就是越南政府曾经公开承认了中国对南沙群岛的主权。然而,在苏联的支持下,越南统一之后很快改变了立场,开始侵占南沙的一些岛礁。1987年2月,联合国教科文组织委托中国建立5个海洋观测 Before the reunification of Vietnam with Vietnam in 1975, the Vietnamese communists made it clear that the Nansha Islands are China’s territory. To date, many foreign scholars still think that Nansha is a strong proof of China’s territory that the Vietnamese government had publicly acknowledged China’s sovereignty over the Nansha Islands. However, with the support of the Soviet Union, Vietnam quickly changed its position after unification and began to occupy some of the island reefs in Nansha. February 1987, UNESCO commissioned China to establish five ocean observations