Kuniaki Koiso
On 10 November 1943 Sukarno and Hatta were sent on a 17-day tour of Japan, where they were decorated by Emperor Hirohito and wined and dined in the house of Prime Minister Hideki Tojo in Tokyo. On 7 September 1944, with the war going badly for the Japanese, Prime Minister Kuniaki Koiso promised independence for Indonesia, although no date was set. This announcement was seen, according to the U.S. official history, as immense vindication for Sukarno's apparent collaboration with the Japanese. The U.S. at the time considered Sukarno one of the "foremost collaborationist leaders."