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1939 Germany declared war on the US in December 1941, a few days after Pearl Harbour.
As Allies of Uk and France the US went to war in Euope when Germany declared war on US on Dec 10, 1941
The US did not declare war on Germany in 1941, Germany declared war on the US as a measure of solidarity with Japan after their attack on Pearl Harbor and the Philippines.
7 December 1941
Germany started WW2 by invading Poland in September 1939. The US did not get involved until they were attacked by the Japanese on 7 Dec 1941. The next day the President declared war against Japan and Germany and Italy. So yes. 1941
They didn't. Germany declared war on the US on 11 December 1941
The US was involved for 6 years from 1941-1945
In World War Two, the US was supplying the allies in Europe. Imperial Japan attacked Pearl Harbor on December 7th, 1941. The US declared war on Japan. Germany and Japan being allies, Germany declared war on the US as well.
Germany declared war on the US on 11 December 1941
Germany declared war on the US in the morning, and the US declared war on Germany in the afternoon on December 11, 1941.
It depended on which country your on about, please be more specific.France an England got involved because they declared war onto Germany when Germany invaded Poland. The USSR got involved fully when Germany invade the USSR in 1941. The US got involved after PearlHarbor. Other countries got involved because theydidn'twant to beoccupiedby the Axis or the Allies.
Japan, Dec 7, 1941 (state of war existed); Dec 8, 1941 US declaration of war against Japan; Germany declared war on US December 11, 1941.