A neutral and independent Belgium was the creation of England or rather of England’s ablest Foreign Minister, Lord Palmerston. Belgium’s coast was England’s frontier; on the plains of Belgium, Wellington had defeated the greatest threat to England since the Armada. Thereafter England was determined to make that patch of open, easily traversible territory a neutral zone and, under the post-Napoleon settlement of the Congress of Vienna, agreed with the other powers to attach it to the Kingdom of the Netherlands.