On 25 April 1915, as part of the New Zealand and Australian Division, the New Zealanders landed at Anzac Cove on the Gallipoli peninsula, and fought in the Gallipoli Campaign under the command of British General Alexander Godley. The combined British Empire and French operation was mounted in order to eventually capture the Ottoman capital of Constantinople (now Istanbul). Because of a navigational error, the Anzacs came ashore about a mile north of the intended landing point in their initial landing. Instead of facing the expected beach and gentle slope they found themselves at the bottom of steep cliffs, offering the few Turkish defenders an ideal defensive position. Establishing a foothold, the Anzacs found an advance to be impossible. On 30 April 1915, when the first news of the landing reached New Zealand a half-day holiday was declared and impromptu services were held – the origin of the commemorative public holiday, ANZAC Day, recognised by New Zealand and Australia and held each year on 25 April.