World War I was the largest global conflict in history until the outbreak of the Second World War a generation later.

World War I was the largest global conflict in history until the outbreak of the Second World War a generation later. What events led the United States into that conflict and how did the Wilson Administration seek to prepare the nation for war? Why did Americans turn their backs on international affairs in the aftermath of that conflict and how did the war set the stage for the Second World War a generation later?