Danish Empire Shrinks, 1536-1720

From The Rise and Fall of the Danish Empire, by Michael Bregnsbo and Kurt Villads Jensen (Palgrave Macmillan, 2022), Kindle p. 240:

During the short 200 years from 1536 to 1720, the Danish empire experienced a considerable weakening and serious land divisions. From being a medium-sized European power, enjoying supremacy over Sweden, the dominant power in the Baltic Sea and Northern Germany as well as in the North Sea, Denmark’s positions in the Baltic Sea region and in Northern Germany were overtaken by Sweden. Moreover, the more vital interests of Britain and the Netherlands in the trade and shipping in the Baltic Sea meant that the conditions became internationalized, and both the Danish Empire and Sweden had to submit to the dictates of super powers. This is also seen in the Danish empire's failure to recapture the Scanian territories or its numerous futile attempts to solve the Gottorp problem, although this was otherwise Denmark’s primary security priority. The prolonged conflict that the empire engaged with Sweden led to extensive efforts to strengthen the Danish empire inward and outward through the introduction of the tax and military state, of an active and multifaceted business policy and of royal absolutism in 1660. But all in all, both the empire and Sweden (despite conquests from Denmark and Norway) were in the long term weakened by their continuous rivalry. Perhaps the efforts to maintain the position of power that the Danish Empire still had in 1536 were simply too great a burden: the empire was thinly spread geographically, had relatively small resources, and a small population. Perhaps this was an inevitable situation, because the trade and shipping on the Baltic Sea were so vital to the larger naval forces. At the very least, by 1720 both the Danish Empire and Sweden had been transformed into actors (albeit not puppets) in an international system in which Britain and Russia set the bar.