Anglo-Swedish War (1810–1812) King's deteriorating health and disinterest made the Crown Prince the "de facto" ruler of Sweden. Under Bernadotte's rule, Sweden's relationship with Napoleonic France deteriorated. When France occupied Swedish Pomerania and the island of Rügen in 1812, Sweden sought peace with Great Britain. After long negotiations, the Treaty of Orebro was signed on 18 July 1812. On the same day and at the same place, Britain and Russia signed a peace treaty bringing the Anglo–Russian War of 1807–1812 to an end. http://blog.svd.se/historia/2012/11/07/hanos-brittiska-historia/ http://www.royalnavy.mod.uk/News-and-Events/Latest-News/2013/July/02/130702-Explorer-Pays-Respects-in-Sweden Anglo-Swedish War (1810–1812) During the Napoleonic Wars until 1810, Sweden and the United Kingdom were allies in the
Conference of Dresden (1812) final planning for the invasion. Whilst at the conference Napoleon sent General Narbonne to meet with Alexander I of Russia with his final ultimatum. Alexander refused to make the territorial concessions demanded and stated that he would prefer to fight rather than agree to a "disgraceful peace". On 29 May, the day after receiving Alexander's reply, Napoleon left Dresden to lead his army into Russia. The conference has been cited as a factor in the United States' commencement of the War of 1812 against Britain and the first indication of Napoleon's desire to wage war upon Russia since the signing