Unrestricted Submarine Warfare

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Unrestricted Submarine Warfare

Category : US In WWI

Unrestricted submarine warfareuboat-periscope

  • Started by Germany.
  • Major factor leading US to join the war
  • On January 9th, 1917, Germany announced to use the unrestricted submarine war fare.(historylearningsite.co)

 

Reasons why Germany started this tactic:

  • Germany wanted to swipe Britain away from the war.
  • Germany believed that if the consequences of the unrestricted submarine warfare were shocking enough, America would keep staying away from the war.
  • They believed that America would be afraid of them if they sucessfully cut the vessels of alliances and defeat the British royal navy.

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  • Unfortunately this tactic totally provoked America because Germany sank 3 American ships during the unrestricted submarine warfare

 

Reasons why United States entered the war:

  • Because of the unrestricted submarine warfare (Germany sank 3 American ships).
  • Zimmerman Telegram
  • A telegram sent from German Foreign Secretary in February 1917 aiming to ally with Mexico.u46
  • The telegram tells that if Mexic
    o would like to ally with German, they would help Mexico to recapture land from US.
  • The telegram was intercepted by Britain and British showed it to US.
  • US was extremely angry that they declared war on Germany in April 1917

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