Unit 8.1. The Great war begins. 5 Steps to War in Europe. Sarajevo, June 28, 1914: A Serbian terrorist assassinates Archduke Franz Ferdinand—the heir to the Austro-Hungarian empire—and his wife. 5 Steps to War in Europe.
2. Vienna, July 23, 1914: The Austrian government threatens war against Serbia and invades that country 4 days later
3. Berlin, August 1, 1914: As Austria’s ally, the German government under Kaiser Wilhelm I declares war against Russia, an ally of Serbia
4. Berlin, August 3, 1914: Germany declares war against France, an ally of Russia, and immediately begins an invasion of neutral Belgium because it offers the fastest route to Paris
5. London, August 4, 1914: Great Britain, as an ally of France, declares war against Germany
Triple Entente (Allied Powers)
Triple Alliance (Central Powers)