Archduke Franz Ferdinand, heir to the throne of the Austro-Hungarian Empire, and his wife Sophie were assassinated in the Bosnian city of Sarajevo. This was a key event in sparking the Great War of 1914–18.
News of the outbreak of war was received in Wellington at 1 p.m. on 5 August 1914. It was announced by the governor, Lord Liverpool, on the steps of Parliament to a crowd of 15,000 people. There was popular enthusiasm for the war in Europe, and New Zealanders caught the mood.
New Zealand played a small but useful part in the British Empire's war effort, and its essential war aim was achieved with the defeat of Germany and its allies in late 1918. New Zealand's security, both physical and economic, was ensured by the victory.