pearl harbor
America.
America and UK
The USSR
America did get involved
It made everyone have less money and/or become poor and the economy was basically falling apart.
the war was what helped america become independent and become the united states of america.
World War 2
America didn't fight in world war 1
america entered the war after pearl harbor
In World War I the doughboys were provided cigarettes. Prior to that Cigars were preferred over cigarettes.
He was the cause of it.
America entered WWI late, but the opponents of Germany, Austria-Hungary and France needed help from another powerful nation. The U.S. has become a majolr power twenty years earlier during the unnecessary Spanish-American War.