 President Franklin D. Roosevelt referred to the United States, United Kingdom, Soviet Union and China as the world's "Four Policemen", elevating the international status of China to an unprecedented height after the century of humiliation at the hands of various imperialist powers.Knowledge of Japanese naval movements in the Pacific was provided to the American Navy by the Sino-American Cooperative Organization (SACO) which was run by the Chinese intelligence head Dai Li.Philippine and Japanese ocean weather was affected by weather originating near northern China.