Because it didn't want to enter a European war
Napoleon sold the Louisiana Territory to the US to finance his European War.
Which war?
The US did enter World War 1, though not till 1917.
The Pacific Theater, where the US fought Japan and the European theater the war, the war with European countries in the second world war
saratoga
the us decided to enter world war because they want the resources of France, and they want to keep on ruling france.
No, it was a European war.
The US entered the war in April of 1917 and were on the Allies side.
The Vietnam war
the us decided to enter world war because they want the resources of france, and they want to keep on ruling france.
The US entered the Korean war in order to protect South Korea