Chinese Foreign Minister Wang Yi said World War II-related agreements mandated that all Chinese territories taken by Japan had to be returned to China. Chinese Foreign Minister Wang Yi said on a visit to Australia that war between China and the United States over the South China Sea would benefit no-one AFP/STR BEIJING: The United States needs to brush up on its history about the South China Sea, as World War II-related agreements mandated that all Chinese territories taken by Japan had to be returned to China, Chinese Foreign Minister Wang Yi said in Australia.