World War I changed forever the face of Europe. The Prussian dynasty(Hohenzollern) led by the Kaise came to an end and, for the forst time in history, Germany had a democratic republish. The Habsburg dynasty also came to an end and the empire of Austria-Hungary was broken up leaving Austrai a small, weak country. The new Balsan country of Yugoslavia was created. The Russian dynasty(Romanov) led by the Czar became extinct after the communist revolution. And the modern country of Turkey came out of the ashed of the Ottoman Empire.