The New Zealand Tunnelling Company made a significant contribution to the capture of Vimy ridge in April 1917. They built a series of caverns and tunnels which allowed forces to advance undetected. The company named the tunnels after New Zealand cities, in this case Christchurch.
Te whakamahi i tēnei tūemi
Permission of the Alexander Turnbull Library, National Library of New Zealand, Te Puna Mātauranga o Aotearoa, must be obtained before any re-use of this image.