Otto von Bismarck once predicted that some “foolish” thing in the Balkans would start a major war in Europe – and he would prove correct in this belief. In an age of entangling alliances between nations, unrest in the Balkans would be enough to disrupt and twist the relationships between the major European powers and lead to a world war. The spark that would ignite this awful cataclysm would be a single act of terrorism in the Balkans – the assassination of Archduke Franz Ferdinand and his wife Sophie. In different environment, the assassination would have been viewed as merely a tragic event – not a casus belli. But in the perfect storm that was Europe in the early 20th century, and in an atmosphere of saber rattling, the assassination changed the world.