Could Japan attack the Soviet Far East after Germany's defeat?

Could Japan attack the Soviet Far East after Germany's defeat?

Japan could act with the United States while Britain and European allies threatened the Soviet Union from the west. That danger might compel Stalin to relinquish eastern Poland.

If Germany surrendered its Polish territory, the victorious coalition could demand the same withdrawal from the Soviet Union. A Soviet refusal could bring an American-Japanese invasion in the east alongside a British and European advance from the west. A German army accepted into the coalition after an armistice might participate in the western operation. The prospect of facing both offensives could itself pressure Stalin to give up Poland.