No. Following Pearl Harbour -
Declaration of War:
The following day, December 8, 1941, President Franklin D. Roosevelt addressed Congress, calling for a declaration of war against Japan, which was passed overwhelmingly.
- Axis Powers Declare War:
Germany and Italy, Japan's allies, responded by declaring war on the United States on December 11, 1941.
- Full Engagement:
With the declaration of war against Germany and Italy, the United States became fully engaged in World War II, mobilizing its resources and manpower for the war effort.