Yoshijiro Umezu quotes:

Germ warfare against the United States would escalate to war against all humanity.

The certain way to victory...lies in making everything on Imperial soil contribute to the war effort...combining the total material and spiritual strength of the nation...

It is not possible to foretell the reaction of certain elements in the Army and Navy.

It is all very well to be cautious, but if we are too cautious we will miss our opportunity.

I can say with confidence that we will be able to destroy the major part of an invading force.

With luck we will be able to repulse the invaders before they land. At any rate, I can say that we will be able to destroy the major part of an invading force. That is, we will be able to inflict extremely heavy damage on the enemy.