@skynews: A silent witness to royal coronations, weddings and funerals, the unknown warrior was selected from the battlefields of France and brought to rest among royalty in Westminster Abbey on 11 November 1920. He represents all service personnel killed in war without a known grave. Sky's royal commentator Alastair Bruce explains the story behind the unknown warrior. #SkyNews #UnknownWarrior #RemembranceSunday #WestminsterAbbey