You say “blockade” without thinking about the consequences.

The US blockades Japan causing food shortages. The military prioritizes what little food is available for themselves. The know the population will starve, but it’s necessary to defend Japan against the foreign Invaders. As long as there is enough food for the military, the war can continue.

Now you have a mass famine where millions of women and children slowly starve to death. Japan uses it for propaganda showing how cruel the West is and how if the West would just sign an armistice leaving the military junta in charge, all these people could be saved.

Is that better?