World war one

US Involvement in WWI

By Brenna Tracy

  • Austria's Archduke Ferdinand assassinated

    Austria's Archduke Ferdinand assassinated
    Archduke Franz Ferdinand of Austria and his wife Sophie, Duchess of Hohenberg were shot to death by Gavrilo Princip, a Bosnian student and member of the Serbian secret society "Black Hand".

  • War was declared.

    War was declared.
    On July 28, 1914, one month to the day after Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist in Sarajevo, Austria-Hungary declares war on Serbia effectively beginning the First World War.

  • Great Britain vs. Germany

    Great Britain vs. Germany
    Great Britain decalared war on Germany at 11:00 p.m. for violating Belgian neutrality. The United States declared neutrality at the outbreak of World War I. With Great Britain formally at war, the Dominions of Australia, Canada, and New Zealand entered World War I.

  • Sinking Lusitania

    Sinking Lusitania
    The German U-20 (submarine) sank the British ocean liner Lusitania. Approximately 1,200 civilians died; more than 100 were U.S. citizens.

  • Third Battle of Artois

    Third Battle of Artois
    The Allied offensive to recapture French territory from the Germans on the Western Front ended in failure. France lost 48,320 casualties while Great Britain lost 61,713.

  • American Entry into World War I

    American Entry into World War I
    British naval intelligence intercepted and decrypted a telegram sent by German Foreign Minister Arthur Zimmerman to the German Ambassador in Mexico City.

  • U.S. Vs. Germany

    U.S. Vs. Germany
    The United States formally declared war against Germany and entered the conflict in Europe. Fighting since the summer of 1914, Britain, France, and Russia welcomed news that American troops and supplies would be directed toward the Allied war effort.

  • Battle of Mount Ortigara

    Battle of Mount Ortigara
    Shock troops with the Austro-Hungarian Army pushed 11 Italian divisions off the Mount Ortigara summit, regaining their important defensive position in Asiago, Italy.

  • Ceasefire

    Ceasefire
    The Allied powers signed a ceasefire agreement with Germany at Compiegne, France, at 11:00 a.m. on November 11, 1918, bringing the war now known as World War I to a close.

  • The Versailles Peace Treaty

    The Versailles Peace Treaty
    The Versailles Peace Treaty, signed on June 28, 1919, officially ended World War I.