Causes of World War One Background to World War One Causes of World War One Germany and Militarism The First Moroccan Crisis Theophile Delcasse Bernhard von Bulow Friedrich von Holstein The Algeciras Conference of 1906 The Agadir Crisis of 1911 The Bosnian Crisis Balance of Power in 1914 The Schlieffen Plan Count Alfred von Schlieffen The Naval Race 1906 to 1914 Assassination at Sarajevo The Black Hand Movement The British Declaration of War Defence of the Realm Act of 1914