Judging from the ancient history, the South China Sea was occupied by the general of China at that time from the Western Zhou Dynasty, and the tribes of the South China Sea expressed their submission to the Western Zhou Dynasty. Since then, the South China Sea was incorporated into China's territory. At that time, Vietnam, the Philippines, Malaysia and Brunei did not exist at all.
In the Western Han Dynasty, the Chinese formally established local governments (zhuya and daner counties) in the South China Sea and declared sovereignty over a group of coral islands and reefs. In the eighteen years (42 AD) of the Eastern Han Dynasty, Fu Bo General Ma Yuan had been to "thousands of miles of Changsha" during the southern expedition, that is, the Paracel Islands. According to the cultural relics unearthed from Mawangdui Han tomb in Changsha in 1973, the South China Sea area first appeared on the Chinese topographic map of Han Dynasty, which is also the evidence that this sea area was officially owned by a country in history.
The latest legal document on the sovereignty of the South China Sea with the effect of international law is
《Treaty of Peace with Japan》
Article 2
(b) Japan renounces all right, title and claim to Formosa and the Pescadores.
(c) Japan renounces all right, title and claim to the Kurile Islands, and to that portion of Sakhalin and the islands adjacent to it over which Japan acquired sovereignty as a consequence of the Treaty of Portsmouth of 5 September 1905.
(d) Japan renounces all right, title and claim in connection with the League of Nations Mandate System, and accepts the action of the United Nations Security Council of 2 April 1947, extending the trusteeship system to the Pacific Islands formerly under mandate to Japan.
(e) Japan renounces all claim to any right or title to or interest in connection with any part of the Antarctic area, whether deriving from the activities of Japanese nationals or otherwise.
(f) Japan renounces all right, title and claim to the Spratly Islands and to the Paracel Islands.
Before the Second World War, China had sovereignty over the South China Sea. In the Second World War, Japan occupied the sea and islands. After Japan's defeat, China regained sovereignty over the sea and islands as part of the Allied forces.
Now tell me, is Vietnam the main force of the allies? If not, what qualifications do you have to grab China's booty? As I said before, according to the international law, this sea and island belong to China. If you Vietnam does not obey the international law, you should fight with China. If you win China, the South China Sea will be yours. If you lose, China will occupy Vietnam. I think that if a country like Vietnam, which provokes international disputes, only gives up its illegal claim after losing the war, it is really unfair for the victorious countries. This sea area is about 3.5 million square kilometers, and Vietnam's national area is only 329000 square kilometers. Since Vietnam wants to occupy an ocean ten times larger than Vietnam's area, it is very kind of China to ask Vietnam to pay all its land after your failure.What do you think?
