What caused the
United States enter World War I?
(scroll down for
Answer: Before the war,
the United States remained neutral. However, certain international
events changed this. It’s good to know...The Boat and The Note.
1. The Boat - The
Lusitania. It was a passenger
ship sailing off the coast of Ireland. It was sunk by a German
submarine (u-boat) on May 7, 1915. The US warned Germany to refrain
from continued submarine warfare. However, the Germans would not
2. The Note - The
Zimmermann Telegram. In 1917, the
British intercepted a telegram from Arthur Zimmermann of Germany. He
was writing to Mexico seeking an alliance. He hoped for a Mexican
invasion of America where territory lost in the Mexican War would
ultimately be reclaimed.
The Germans continued their
policy of unrestricted submarine warfare. President Woodrow Wilson
asked Congress to declare war in April of 1917. He was hoping to
make the world “safe for democracy.”