The victory medal for those who survived World War I proclaimed that their effort was part of the Great War for Civilisation. New Zealand contributed around 18,000 lives to this quest which would ultimately claim 10 million soldiers and 7 million civilians, after the governments of Europe lost control of a process whereby a bewildering set of commitments pulled them all into a black hole of industrialised killing.
The trigger was the assassination of the heir presumptive to the Austro-Hungarian throne, Franz Ferdinand, on June 28, 1914. A chain reaction followed as the disagreement between Serbia and Austria sucked in all of their partners. The connection to Turkey began on August 1, when Winston Churchill, as First Lord of the Admiralty, refused to hand over to the Ottomans two new battleships despite being under contract to do so, requisitioning them both for the Royal Navy as a matter of national importance.
On August 2, the Ottomans concluded a secret treaty with Germany to fight against their shared enemy, Russia. Two days later on August 4, Britain, and then New Zealand, declared war on Germany after the Germans crossed the Belgian frontier in a pre-emptive strike in an attempt to attack the French from an unexpected direction. Britain responded because they had signed a treaty in 1839 which guaranteed the neutrality of Belgium.
Six weeks later at the end of October, the Ottomans began bombarding Russian ports. Russia then called upon France and Britain to assist them in accordance with their 1907 alliance whereby each had "a moral obligation" to help. France and Britain assisted by declaring war on the Ottoman Empire. The justification to defend a small and vulnerable Belgium was noble. The decision to use lethal force to assist in the war against the Ottomans was questionable, but not obnoxious.
Things changed in late March, 1915 when France, Britain and Russia concluded a secret agreement, promising Russia that they could have Constantinople and the Dardanelles, in the event of a final allied victory. A little over one month later on April 25, the Gallipoli campaign began during which more than 130,000 men would be killed, including 2779 Kiwis.