Prince William, Duke Of Cambridge Attends New Zealand National Commemoration For The Battle Of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belguim.

(R) Prince William, Duke of Cambridge has told descendants of New Zealand soldiers who fought and died at the Battle of Passchendaele that although we may never truly understand the conditions they endured 'we can remember'

(2nd-L) Prince William, Duke of Cambridge, representing his grandmother, and Princess Astrid of Belgium have both paid tribute to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belguim.

(L) Prince William, Duke of Cambridge was warmly greeted by Princess Astrid of Belgium at the event and the pair shared a joke before he addressed the crowds

Prince William, Duke of Cambridge and Princess Astrid of Belgium were greeted by the Maori cultural group of the New Zealand Defense Force, whose spiritual calls and chants rang out across the white headstones

The Duke of Cambridge gave a speech at the commemoration, which marks the centenary of 12 October 1917, a date which became known at the 'darkest day' for New Zealand's armed forces

Prince William, Duke of Cambridge, representing Her Majesty The Queen, lays a wreath at the New Zealand Memorial Wall to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge met with representatives of the New Zealand Parliament and government at Tyne Cot Cemetery in Flanders, which is run by the War Graves Commission, which has responsibility for the burial space

Prince William, Duke of Cambridge who represented the Queen at the event in Belgium, was joined by the county's Princess Astrid and delivered his speech at Tyne Cot cemetery, near the town of Ypres in Flanders, surrounded by thousands of headstones of Allied servicemen who died in the Great War

Prince William, Duke of Cambridge, representing Her Majesty The Queen, attends the New Zealand Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge, representing Her Majesty The Queen (second left), Princess Astrid of Belgium and guests attend the New Zealand Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium. The Commemoration marks the centenary of the Third Battle of Ypres during World War One, where the New Zealand Division suffered heavy losses.

Prince William, Duke of Cambridge, representing Her Majesty The Queen, attends the New Zealand Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Britain's Prince William, Duke of Cambridge (C) and Princess Astrid of Belgium (R) attend a commemoration at the Tyne Cot Commonwealth War Graves Cemetery for the centenary of Passchendaele, the third battle of Ypres on 30th and 31st July 2017, on October 12, 2017 in Passendale, Zonnebeke. New Zealand is commemorating on October 12 the centenary of the World War I Battle of Passchendaele.

Prince William, Duke of Cambridge, representing Her Majesty The Queen, attends the New Zealand Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge, representing Her Majesty The Queen, lays a wreath at the New Zealand Memorial Wall to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Princess Astrid of Belgium attends the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge and Princess Astrid of Belgium attends the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge and Princess Astrid of Belgium attends the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge performs a Hongi - a traditional Maori greeting - after arriving in Ypres on October 12, 2017 to commemorate the servicemen who fought and died 100 years ago at the Battle of Passchendaele

The Duke of Cambridge has given a poignant speech in memory of the New Zealand servicemen who bravely gave their lives

Prince William, Duke of Cambridge told those at the commemoration: 'Entire communities were robbed of their young people. No part of New Zealand was untouched by loss' was joined by the county's Princess Astrid of Belgium.

 Prince William, Duke of Cambridge, representing Her Majesty The Queen and Princess Astrid of Belgium attend the New Zealand Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium. The Commemoration marks the centenary of the Third Battle of Ypres during World War One, where the New Zealand Division suffered heavy losses.

The Duke of Cambridge arrives accompanied by Princess Astrid of Belgium (right) to attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery, Belgium.

 Prince William, Duke of Cambridge, representing Her Majesty The Queen and Princess Astrid of Belgium attend the New Zealand Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

 Prince William, Duke of Cambridge, representing Her Majesty The Queen and Princess Astrid of Belgium attend the New Zealand Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Princess Astrid of Belgium attends the New Zealand Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium. The Commemoration marks the centenary of the Third Battle of Ypres during World War One, where the New Zealand Division suffered heavy losses.

Prince William, Duke of Cambridge, representing Her Majesty The Queen, and Princess Astrid of Belgium attend the New Zealand Memorial Wall to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Princess Astrid of Belgium attend the New Zealand Memorial Wall to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

(2nd-L) Prince William, Duke of Cambridge, representing Her Majesty The Queen, and Princess Astrid of Belgium attend the New Zealand Memorial Wall to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge, representing Her Majesty The Queen, and Princess Astrid of Belgium attend the New Zealand Memorial Wall to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge, representing Her Majesty The Queen, and Princess Astrid of Belgium attend the New Zealand Memorial Wall to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge, representing Her Majesty The Queen, and Princess Astrid of Belgium attend the New Zealand Memorial Wall to the Missing during the Commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

The Duke of Cambridge and Princess Astrid of Belgium (right) unveil a commemorative plaque as they attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery, Belgium.

The Duke of Cambridge and Princess Astrid of Belgium attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery, Belgium.

Prince William, Duke of Cambridge and Princess Astrid of Belgium attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery, Belgium.

Prince William, Duke of Cambridge and Princess Astrid of Belgium attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery, Belgium.

Prince William, Duke of Cambridge arrives accompanied by Princess Astrid of Belgium (right) to attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge arrives accompanied by Princess Astrid of Belgium (right) to attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Princess Astrid of Belgium departs after speaking at the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Princess Astrid of Belgium speaks at the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Princess Astrid of Belgium speaks at the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

(2nd-L) Prince William, Duke of Cambridge and Princess Astrid of Belgium attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge and Princess Astrid of Belgium attend the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Prince William, Duke of Cambridge and Princess Astrid of Belgium attends the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.

Princess Astrid of Belgium attends the New Zealand national commemoration for the Battle of Passchendaele at Tyne Cot Cemetery on October 12, 2017 in Flanders, Belgium.