In November 1939 , Rhee and his wife left Hawaii for Washington . He focused on writing the book '' Japan Inside Out '' and published it during the summer of 1941 . With the attack on Pearl Harbor and the consequent Pacific War which began in December 1941 , Rhee used his position as the chairman of the foreign relations department of the provisional government in Chongqing to convince President Franklin D. Roosevelt and the United States Department of State to approve the existence of the Korean provisional government . As part of this plan , he cooperated with anti-Japan strategies conducted by the Office of Strategic Services . In 1945 , he participated in the United Nations Conference on International Organization as the leader of the Korean representatives to request the participation of the Korean provisional government
United Nations Conference on International Organization
United Nations Conference on International Organization
Syngman Rhee