The US entered the war on April 6,1917
December 8, 1941
Semantic memory and reading US history.
The US entered World War 2 on 8 December 1941 - the day after the Japanese attack on Pearl Harbour.
1917 smart
The US most likely would have entered WW II, but it would have been at a later date than 1941.
You need to specify WHICH war- we have had more than one.
The US would have entered the war at a later date, in response to some other Axis provocation.
1918
Fdr
No, the U.S. entered World War 1 in 1917.
Britain
1941