Germany could never win a war against the U.S because they would never try to after what happened in World War 2 and World War 1. Also if they did try, I'm not sure how they would attack us as they are not allowed to have a military (since World War II).
Other than that, its difficult to predict this kind of thing.
No they won against Germany in 1918.
The war between Germany and Japan ended in the year 1945.
WW2 (:
December 11, 1941, immediately after Germany declared war on the US.
After the Japanese attack on Pearl Harbor and the US Decleration of War against Japan, Germany declared War on the US.
US
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.
Germany declared war on the US on 11 December 1941
Us fought against Italy, Germany and Japan.
We did not want to go to war until the Japanese attacked Pearl Harbor. Shortly after we declared war on Japan, it was Germany who declared war on us. We had no say in the matter of war with Germany.
08 Dec 1941
December 11, 1941.