First of all, we have to find the answer in history, the United States is a country that rose in World War II, after World War II, the world basically fell under the control of the United States, China, Britain, and the Soviet Union.
Japan, the United States could have dismantled eight pieces and the victorious countries to divide them, but in the end Japan still restored its original homeland, especially the return of Okinawa to Japan, which also shows that the perception of territory is also beyond our imagination, if it were the Soviet Union, this land would be permanently confiscated, and the people of the ** were transferred, Central Asia, the Far East did this, and a large number of Koreans who lived in the Far East at that time were transferred to Central Asia, mainly to weaken the number of East Asians in the Far East.
At that time, the United States was also quite good to China, the United States pulled China into the permanent membership of the Security Council, and Okinawa could also be controlled by China, but the United States intended to give it to China, but later it did not happen, and the South China Sea region basically belonged to China.