Denmark Region, which encompasses the Copenhagen metropolitan area with the exception of the subtracted province East Zealand but includes the Baltic Sea island of Bornholm, has a population three times larger than that of North Denmark Region, which covers the more sparsely populated area of northern Jutland. Under the county system certain densely populated municipalities, such as Copenhagen Municipality and Frederiksberg, had been given a status equivalent to that of counties, making them first-level administrative divisions. These "sui generis" municipalities were incorporated into the new regions under the 2007 reforms. The Kingdom of Denmark is a unitary state that comprises, in
History of Denmark his rule. Once again the Swedish army arrived outside Copenhagen. However, this time the Danes did not panic or surrender. Instead, they decided to fight and prepared to defend Copenhagen. Frederick III of Denmark had stayed in his capital and now encouraged the citizens of Copenhagen to resist the Swedes, by saying he would die in his nest. Furthermore, this unprovoked declaration of war by Sweden finally triggered the alliance that Denmark–Norway had with the Netherlands. A powerful Dutch fleet was sent to Copenhagen with vital supplies and reinforcements, which saved the city from being captured during the Swedish attack.