US Enters World War I

  • Franz Ferdinand is Assassinated

    Franz Ferdinand is Assassinated
    Archduke Franz Ferdinand was killed in Sarajevo, Bosnia by Gavrilo Princip who was a member of a Bosnian nationalist group.
  • Period: to

    World War I Until US Involvement

  • War Breaks Out in Europe

    War Breaks Out in Europe
    Sides of the war resulted from a complicated series of treaty. Triple Alliance - Austro-Hungary, Germany, Italy(who switches sides) Triple Entente - Russia, France, Britain Two Sides - Allied Powers and Central Powers
  • Germany Invades Belgium

    Germany Invades Belgium
    German choses to invade France through Belgium. This brings Great Britain into the war because of their treaty with Belgium.
  • Battle of Marne Begins

    Battle of Marne Begins
    This battle stops German advance into France and creates the pattern of trench warfare that will last for the next 4 years.
  • Unrestricted Submarine Warfare Begins

    Unrestricted Submarine Warfare Begins
    German U-boats threaten to sink any ships in British waters.
  • Lusitania is Sunk

    Lusitania is Sunk
    The Lusitania was a British passenger ship carrying 1200 people, including 128 Americans. German attack outraged Americans who believed it was an unnecessary terror attack. Wilson sent ambassadors to Germany to protest the U-boat policy.
  • Sussex Torpedoed

    Sussex Torpedoed
    French passenger ship that, like the Lusitania, had Americans on it. Wilson made an agreement with the Germans, demanding that the Germans would stop the U-boat attacks.
  • Sussex Pledge

  • Wilson Reelected

    Wilson Reelected
    Wilson go reelected by running as the "peace" candidate. "He kept us out of the war."
  • Zimmermann Telegram

    Zimmermann Telegram
    The Zimmermann Telegram was sent from Germany to Mexico. It was intended to get Mexico to join the war with Germany by promising Mexico their old territory in Arizona, New Mexico, and Texas.
  • Germany Continues U-Boat Attacks

    Germany sinks six US ships breaking the Sussex Pledge, and outrages the American people.
  • Wilson Appeals to Congress

  • House Approves War

    House Approves War
    Wilson's request is approved by both the House and the Senate, and the US enters the war on the side of the Allies.