The Dano-Swedish Wars were a series of conflicts between the kingdoms of Denmark and Sweden from the late 14th century to the early 19th century. These wars primarily stemmed from territorial disputes and power struggles in the Baltic Sea region, with both nations seeking dominance over trade routes and land. Key conflicts included the Kalmar War (1611-1613) and the Great Northern War (1700-1721), which significantly altered the balance of power in Northern Europe. Ultimately, these wars contributed to the decline of Danish influence and the rise of Sweden as a major power in the region.