Japan - "Siberia, Sakhe, Amur and the Soviet Far East are now a National Objective. (5 IPC)" - Didn't the USSR and Japan have a nonagression treaty? Then why would this be a NO?
Interesting bit of history here. In 1927, Baron Gishi Tanaka, the Prime Minister of Japan, presented to the Emporer the "Tanaka Memorial" which was basically a detailed plan for world conquest by Japan. In it, one of the aims was to occupy and control all Russian territory east of Lake Baikal, which was bacially the eastern 1/3 of Russia. So, if you went by the "Tanaka Memorial" those four Soviet territories would make a good national objective for Japan.
Hasn't the Tanaka memorial been shown as a hoax?