The Duke of Sussex will leave Meghan and his newborn son as he heads back to work on a trip to the Netherlands where he will launch the one-year countdown for the Invictus Games. Just three days after the birth of his son Archie, Harry will visit The Hague to launch the one-year countdown to the 2020 games. Harry introduced Archie Harrison Mountbatten-Windsor to the world alongside wife Meghan in a photocall that made headlines around the world yesterday. Meghan is likely to still have the company of her mother Doria Ragland at their Frogmore Cottage home while Harry is away on the short trip. Harry and Meghan announced they had called their baby Archie Harrison Mountbatten-Windsor after the duchess movingly described her son and husband as “the two best guys in the world”. The couple broke with royal convention by not using a title for their baby boy, and have given their firstborn a name familiar to fans of the American Archie comic – featuring a main character who has red hair just like the duke. The new parents were pictured showing off baby Archie to the Queen and Duke of Edinburgh, alongside Ms Ragland, at Windsor Castle. Harry and Meghan’s first born,…