Germany and Italy formally declare war on the United States just days after Amer

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Axis Declare War: U.S. Joins Global Conflict

Germany and Italy formally declare war on the United States just days after America enters the conflict against Japan, prompting Washington to immediately reciprocate with declarations against both Axis powers. This four-way exchange instantly transforms a regional Pacific struggle into a truly global conflagration, committing the U.S. to fight simultaneously across two oceans while binding its industrial might directly to the European theater.

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December 11, 1941

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Axis Declare War: U.S. Joins Global Conflict

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