The battle for Passchendaele was the greatest military disaster New Zealand forces ever faced. The loss of over 1200 lives in just a few short hours on 12 October 1917 marked a pivotal time for the New Zealand army. The soldiers were demoralised almost to the point of no return. Yet they did not give up. They retreated, rested and reinforced. And in March 1918 they returned to face their foe. The Spring Offensive turned out the be the greatest military victory of New Zealand's history.