Norway, officially the Kingdom of Norway, is a Nordic country comprising the western and northernmost parts of the Scandinavian Peninsula in Northern Europe, the remote Arctic island Jan Mayen and the archipelago Svalbard. Bouvet Island, located in the Subantarctic, is a dependency, and not a part of the Kingdom; Norway also claims the Antarctic territories of Peter I Island and Queen Maud Land. Norway has a population of approximately 5.6 million, and a total area of 385,207 square kilometres (148,729 sq mi). Its capital and largest city is Oslo. The country shares a long eastern border with Sweden, and is bordered by Finland and Russia to the northeast. Norway has an extensive coastline facing the Skagerrak strait, the North Sea, the Norwegian Sea, and the Barents Sea. The unified kingdom of Norway was established in 872 as a merger of petty kingdoms and has existed continuously for 1,153–1,154 years. From 1537 to 1814, Norway was part of Denmark–Norway, and, from 1814 to 1905, it was in a personal union with Sweden. Norway was neutral during the First World War, and in the Second World War until April 1940 when it was invaded and occupied by Nazi Germany until the end of the war. Harald V of the House of Glücksburg is the current King of Norway.