How many times has America declared War?
The United States has formally declared war against foreign nations 5 times. The only country against which the United States has declared war more than once is Germany, against which the United States has declared war twice (though a case could be made for Hungary as a successor state to Austria-Hungary). Each time the declaration was requested by the President either in writing or in person before a joint session of Congress. In World War II, the Japanese had attacked Pearl Harbor on the previous day, December 7, 1941. On December 11, Hitler and Mussolini declared war on America and the U.S. Congress responded in kind. War of 1812 Mexican-American War Spanish-American War World War I World War II On at least 125 occasions, the President has acted without prior express military authorization from Congress. These include instances in which the United States fought in Korea in 1950, the Philippine-American War from 1898-1903, and in Nicaragua in 1927. The United States’ longest war was
