Number these events in the order in which they occurred, from 1st to 5th.
11. American soldiers began arriving in Europe to fight in World War I
12. Germans' rage over their country's surrender helped Adolf Hitler rise to power.
13. A German submarine sank a British passenger ship called the Lusitania off the coast of Ireland
14. U.S. President Woodrow Wilson asked Congress for a declaration of war. 15. Germany, the last of the Central Powers, agreed to a peace settlement
