Answer:
The war changed the economical balance of the world, leaving European countries deep in debt and making the U.S. the leading industrial power and creditor in the world. Inflation shot up in most countries and the German economy was highly affected by having to pay for reparations.
It was the first agreement for self-government to be created and enforced in America.
The creation of the Department of Homeland Security and the creation of the State Department were the major changes in traditional United States foreign policy that enabled America to fight the Cold War.
