I don't know much about politics Besides, militarily, before the South China Sea was filled with islands, the strength comparison between China and Vietnam in the South China Sea (without considering the naval formation, only considering the garrison on the south island reef) was 29:7, and with other island countries such as Philippine Monkey and Malay, China occupied less than 10% of the South China Sea, the largest island Taiping Island was in the hands of Taiwan Province Province of China, the second largest island was in the hands of the Philippines, and China occupied it. Yongshu Reef used to be a small stone several square meters above the water. It has been filled for decades, and it is as big as before filling the island. Before the island is filled, there will be no more than two battalions stationed in the South China Sea of China, and all needed materials will be transported by ship. There is not enough place to store fresh water and vegetables on the island, because there is no production place, so these things are extremely precious. In short, before filling the island, China's strength in the South China Sea was mainly warships of the South China Sea Fleet, and the fighting capacity and personnel of the South China Sea garrison were very weak. There was an incident in which monkeys went to the island to kill our troops (this was a long time ago, so you can search if you are interested). After this round of island reclamation, China's garrison in the South China Sea has undergone earth-shaking changes. First, with a large port, goods can be transported directly to the island, and the supply speed has been qualitatively improved; In addition, Yongshu Island has set up an airstrip where fighters and bombers can be stationed, which neighboring countries cannot have. The big port of Meiji Island can be developed into a naval base, and other islands and reefs have also developed to the scale of Yongshu Reef before filling the island. Since then, China has owned a large airport and a large port (integration of defense and civilian technologies) in the South China Sea. The South China Sea garrison has made a qualitative leap. The garrison in the South China Sea may develop from two battalions to a naval base, an air base and seven company-level garrison islands and reefs, thus changing China's weakness in the South China Sea.