He believes that German aggression is a threat to world peace.
Explanation:
When World War I began on July 28, 1914, America decided to stay away from the conflict. It was a European war, it was not an American concern. However, the events that subsequently occurred between 1915 and 1917 proved to President Woodrow Wilson that neutrality is not so easy to maintain when you are in a war. German begin to attack every vessel that was sailing in the Atlantic, no matter if they were a cargo ship or a passenger ship, they were deliberated bombarded and sunk. In February 1917 it was discovered that German was announcing unrestricted laws for its submarines, and they were allowed to bombard and sunk any vessel that patrol the Atlantic. This threat to peace led Wilson to declare war.
