Tank

U.S. Entry into World War I

By mikefreese
  • U-boats begin sinking merchant ships

    U-boats begin sinking merchant ships

    After finding contraband on British ships, U-boats would sink the merchant ships
  • Great Britain Mounts guns on merchant ships

    Great Britain Mounts guns on merchant ships

    British merchant ships begin sinking U-boats instead of allowing German inspectors on board.
  • U-boats begin unrestricted submarine warfare

    U-boats begin unrestricted submarine warfare

    Germany allows U-boats to sink British merchant ships without warning.

  • U-boat sinks Lusitania

  • Germany agreed to stop sinking passenger ships without warning.

  • Battle of Jutland

  • Sussex Plege

    Sussex sunk - Americans threatened Germany and Germany promised to stop sinking ship without warning

  • Germany announced unrestricted submarine warfare would resume

    Germany hoped to end the war in Europe before U.S. could join the fighting.
  • Zimmermann Note uncovered

    Zimmermann Note uncovered

  • Broke off Dplomtic Ties with Germany

  • U.S. armed merchant ships

  • Russian Revolution - Democratic government takes over

  • Germany sank 3 ships

  • U.S. Declares War on Central Powers