During the First World War the men of the New Zealand Tunnelling Company, many of them hardbitten
West Coast miners, helped create a vast network of military tunnels
under the French town of Arras.
With both the Allies and the Germans trying to tunnel under each other’s lines to lay mines, the New Zealand Tunnelling Company's experience was invaluable.
This photograph shows the tunnel leading to the Christchurch cavern under Arras, France, which was built by the New Zealand Tunnelling Company during the First World War.