feb 3, 1917 - In an Address to a Joint Session of Congress announces that as a result of Imperial Germany’s decision to threaten vessels of neutral countries through submarine warfare, U.S. is severing diplomatic relations with Germany. If U.S. ships are threatened, he will return and ask for authority to use any means necessary in their defense
Added to timeline:
Date:
feb 3, 1917
Now
~ 108 years ago