Tomb of the Unknown Soldier services connected with their 'monumental' graves (as presumably newly conceived, and in any case approved, by their respective armies) on Armistice Day 1920 (the burial itself taking place later in January of the following year in France). In the UK, the Tomb of the Unknown Warrior was created at Westminster Abbey, while in France "La tombe du soldat inconnu" was placed in the Arc de Triomphe. The idea of a symbolic Tomb of the Unknown Soldier then spread to other countries. In 1921, the United States unveiled its own Tomb of the Unknown Soldier, Portugal its Túmulo do Soldado Desconhecido,
The Unknown Warrior entered the castle library and placed the coffin into a casket of the oak timbers of trees from Hampton Court Palace. The casket was banded with iron, and a medieval crusader's sword chosen by King George V personally from the Royal Collection was affixed to the top and surmounted by an iron shield bearing the inscription 'A British Warrior who fell in the Great War 1914–1918 for King and Country'. The casket was then placed onto a French military wagon, drawn by six black horses. At 10.30 am, all the church bells of Boulogne tolled; the massed trumpets of the