State visit of the President of Ireland to the United Kingdom with full cavalry escort to Windsor Castle, where the President, accompanied by the Duke of Edinburgh, inspected a Guard of Honour provided by the 1st Battalion Irish Guards. President Higgins presented a ceremonial red coat to its regimental mascot, an Irish Wolfhound called Domhnall of Shantamon. The President viewed Irish-related items from the Royal Collection at Windsor Castle. Afterwards they departed for London and visited Westminster Abbey for a tour, where the President laid a wreath at the Grave of the Unknown Warrior and paid his respects with a bow to the tomb of Louis, the Earl of Mountbatten. After
The Unknown Warrior Her daughter, Queen Elizabeth II, laid the wreath the day after the funeral. The British Unknown Warrior came 76th in the 100 Great Britons poll. The LMS-Patriot Project a charitable organisation, is building a new steam locomotive that will carry the name "The Unknown Warrior". The new loco has been endorsed by the Royal British Legion as the new National Memorial Engine. A public appeal to build the locomotive was launched in 2008. "The Unknown Warrior" is expected to be complete by January 2019—one year late of the 100th Anniversary of the Armistice. Heads of state from over 70 countries