Final answer:
Americans affected the end of WWI and its peace settlements through their entry into the war, Wilson's vision for a new world order, and the creation of the League of Nations.
Step-by-step explanation:
Americans affected the end of WWI and its peace settlements in several ways:
- The United States' entry into the war in 1917 provided much-needed reinforcements to the Allies at a crucial time, helping to turn the tide of the war in their favor.
- President Woodrow Wilson played a key role in shaping the postwar world through his Fourteen Points, which outlined his vision for a more peaceful and just international order.
- Although the United States never formally approved the Treaty of Versailles or joined the League of Nations, Wilson's influence led to the creation of the League and set the stage for future international cooperation.