Japanese war criminals began to be released in December 1948 and the ordinance on purging those criminals from public life became invalid.

A number of fascist organizations were revived in Japan at the U.S. instigation, and they went so far as to call for the revival of the Japanese Empire by annexing Korea and Taiwan to Japan under the slogan of the "Greater East Asia Co-prosperity Sphere".

The policy on the Far East Arsenal began to be carried into effect in Japan in the year 1949. Machinery and chemical factories had been turned into to munitions factories from early 1950 on the instruction of the MacArthur's Command.

In April 1950, all shipyards in Japan launched transforming U.S. tank carriers into troop carriers.

Runways for large bombers were constructed across Japan from Hokkaido to Kyusu.

Meanwhile, a wholesale crackdown on Japan-resident Koreans, their democratic organizations and Japan's democratic forces was committed in Japan as part of the preparations for the Korean War.

All these facts show that Japan actually joined the United States in preparing the Korean War.