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The Archduke was assassinated by Gavrilo Princip do to his beliefs not going along with the Archdukes -
Austria-Hungary declares war on Serbia do to the assassination of Archduke Ferdinand -
Germany joins WWI and declares war on many nations -
Germany begins to use u-boats in WWI -
Germany uses a torpedo to sink the Lusitania. 128 Americans were killed. -
The Zimmermann Telegram was a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between the German Empire and Mexico if the United States entered World War I against Germany. With Germany's aid, Mexico would recover Texas, Arizona, and New Mexico.The note was intercepted by the British and the British went on to tell America. -
U.S is forced to declare was on Germany after Germany killed 128 Americans on the Lusitania. -
The Treaty of Brest-Litovsk was a separate peace treaty signed between Soviet Russia and the Central Powers, by which Russia withdrew from World War I. -
The Armistice is signed which ended all fighting of Land,Sea, and Air between the Entente and their last remaining opponent, Germany. -
The Treaty of Versailles outlined the conditions of peace between Germany and the victorious Allies, led by the United States, France, and the United Kingdom