On December 11, 1941, several days after the Japanese attack on Pearl Harbor and the United States' declaration of war against the Japanese Empire, Nazi Germany declared war on the United States, in response to what claimed to be a series of provocations. it was done. The United States government when America was formally neutral during World War II.
The decision to declare war was made almost entirely by Adolf Hitler without consultation. Hitler had not received any advance notice from the Japanese about the attack on Pearl Harbor.
Although he and his foreign minister Ribbentrop had verbally indicated their willingness to join Japan in the war against the US, it broke down, with Hitler having no formal treaty obligation to declare war on the United States. was. Such a treaty was actually drawn up and circulated in the weeks before Pearl Harbor, but it remained unsigned.
The bombing of Pearl Harbor surprised even Germany. Although Hitler had made an oral agreement with his axis nation Japan that Germany would engage in a war against the United States, he was unsure how the war would take place.