United states flag7

Events of the United States during World War I

By njones18

  • Declaration of Neutrality

    Declaration of Neutrality
    The United States declared neutrality in the war on August 4, 1914.

  • Sinking of the Lusitania

    Sinking of the Lusitania
    The ocean liner, the Lusitania, was sunken by a German U-boat on May 18, 1915.

  • Beginning of the Sussex Pledge

    Beginning of the Sussex Pledge
    Germany agrees to suspend unrestricted submarine warfare in the form of the Sussex Pledge, made on May 18, 1916.

  • Zimmerman Note

    Zimmerman Note
    The German Foreign Secretary Arthur Zimmermann sends a telegram to his ambassador in Mexico, instructing him to propose to the Mexican government an alliance against the United States.

  • End of Sussex Pledge

    End of Sussex Pledge
    Germany resumes unrestricted submarine warfare, thus ending the Sussex Pledge on February 1, 1917

  • 3 American Ships Targeted

    3 American Ships Targeted
    3 American ships were targeted during the month of March, 1917 by German U-boats.

  • Declaration of War

    Declaration of War
    The United States officially declared war on Germany on April 18, 1917.