when did england last go to war with france
France–United Kingdom relations After escaping and briefly threatening to restore the French Empire, Napoleon was defeated by combined British, Prussian and Dutch forces at Battle of Waterloo in June 1815. With strong British support, the Bourbon monarchy was restored and Louis XVIII was crowned King of France. The Napoleonic era was the last occasion on which Britain and France went to war with each other, but by no means marked the end of the rivalry between the two nations. Despite his final defeat, Napoleon continues to be regarded as a national hero figure in France for his numerous victories over coalised monarchies.
British and French declaration of war on Germany The Declaration of war by France and the United Kingdom was given on 3 September 1939, after German forces invaded Poland. Despite the speech being the official announcement of both France and the United Kingdom, the speech was given by the British Prime Minister Neville Chamberlain, in Westminster, London.[1]