World War I - Which Countries Fought
In Part 2 of our series on WWI, http://www.WatchMojo.com finds out who was fighting whom during the First World War.
history, wars, world wars, WWI, World War I, warfares, politics, Allied Powers, Central Powers, Triple Entente, Europe, Austria-Hungary, Serbia, The Balkans, Germany, Russia, assassination, Archduke Franz Ferdinand, Treaty of London, Zimmermann Telegram