Chief of Army General Staff
Sugiyama lists various
reasons as to why war
against the United States
must commence
immediately. What are they,
and which ones are most
important in his eyes.

1. Resource Acquisition: Sugiyama believed that Japan needed to secure vital resources, particularly oil and rubber, which were essential for sustaining its military operations and economic growth. The U.S. embargo on oil exports to Japan heightened this urgency.
2. Strategic Positioning: He argued that Japan needed to establish a dominant position in the Pacific to deter U.S. influence and prevent American intervention in its expansionist plans in Southeast Asia.
3. Preemptive Strike: Sugiyama viewed a war against the U.S. as a necessary preemptive measure. He believed that delaying the conflict would only allow the U.S. to strengthen its military capabilities, making Japan’s position more precarious.
4. National Unity and Morale: He posited that engaging in war would unify the Japanese people and bolster national morale, rallying them around a common cause.
5. Historical Context: Sugiyama referenced Japan’s past military successes and the belief that a decisive victory against the U.S. could lead to a favorable peace settlement.
6. Diplomatic Failures: The breakdown of diplomatic negotiations with the U.S. was seen as a clear indication that peaceful resolutions were no longer viable, necessitating military action.

Most Important Reasons

• Resource Acquisition: This was paramount, as the lack of resources would cripple Japan’s military efforts and economic stability.
• Preemptive Strike: The belief that war was inevitable and that acting first would provide Japan with a strategic advantage was a significant motivator.