On 11 November 1920, the Unknown Warrior, a common soldier and an unidentified casualty of war, was buried in Westminster Abbey with all the pomp and ceremony of an empire at its zenith. King George V looked on as 100 Victoria Cross bearers formed a guard of honour and the unknown solider was laid to rest. To discuss the backstory of the Unknown Warrior, Dan was joined by author and historian Juliet Nicolson, who has been researching the lasting shadow of the Great War.