Wikipedia articles from an alternate universe:

The Second Japanese War (known in Japan as the Independence War) took place from 1959-1973, pitting the Soviet-aligned Government of Northern Honshu and Hokkaido against the American-aligned Government of Japan. The war is considered a proxy war between the Soviet Union and the United States, and marks the closest the two countries ever came to being directly at war with each other, with both fielding ground and air forces directly on the Japanese Islands and operating aircraft carriers in nearby waters at various points throughout the conflict. Other countries that sent forces to the war include South Korea, South Vietnam, Thailand, Australia, New Zealand, the Philippines, China, North Vietnam, and North Korea. The war resulted in the Unification of Japan under the Japanese Communist Party, and is credited along with the Vietnam War with causing the American Constitutional Crisis of 1972 due to it's extreme cost and unpopularity with Americans.
(pictures, clockwise from the top-left: US Marines at Camp Zukeran, The sinking USS Antietam, A Communist propaganda poster depicting Japanese and Korean friendship (text: Our Class Enemies Are The Same!), Victims of the 1970 Kyoto Massacre)

Well said. Good as he was in comparison, FDR was still an imperialist hawk