Updated: 10/28/2020

Storyboard Text

  • A promise made by Germany to the United States in 1916, during World War I.
  • RMS Lusitania was a British ocean liner that was sunk on 7 May 1915 by a German U-boat.
  • A type of naval warfare in which submarines sink vessels such as freighters and tankers without warning.
  • The United States broke relations when it declared war on the United Kingdom during the War of 1812;
  • Zimmerman Telegram~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  • A secret diplomatic communication issued from the German Foreign Office