mar 31, 1917 - In 1917, Germany re-started its submarine attacks against unnamed ships even though it had pledged to stop. U.S. President Woodrow Wilson asked the U.S. Congress for a declaration of war, and the U.S. entered World War I.
Description:
Military InterventionAdded to timeline:
Date:
mar 31, 1917
Now
~ 109 years ago