ティルジットの和約
Following the Treaties of Tilsit, Britain and Sweden remained the only two major coalition members still at war with France. Russia soon declared war against Britain and after a British attack on Copenhagen, Denmark–Norway joined the war on the side of Napoleon ("Gunboat War"), opening a second front against Sweden. A short British expedition under Sir John Moore was sent to Sweden (May 1808) to protect against any possible Franco-Danish invasion.