Because it was not until the US Fleet was attacked at Pearl Harbor that the US had just cause to declare war.
The united states didnt want to get involbed so the stayed neutral
They joined the war in 1917.
They joined the war in 1917.
The u.s did join WW2
The 8th of December 1941 was the date that the US joined world war 2
in 1956
in 1956
World War I
England
They joined in1941
zoosk
The Allies
which war