Treaty of Kalmar

The Treaty of Kalmar, signed in 1397, was an agreement that united the kingdoms of Denmark, Norway, and Sweden under a single monarch, creating the Kalmar Union. This treaty aimed to strengthen ties between the three nations and enhance their collective power against external threats. Although initially successful, the union faced challenges due to regional conflicts and differing interests among the kingdoms, leading to its eventual dissolution in the 16th century. The treaty is significant as it marked an early attempt at Scandinavian political unity and has influenced Nordic relations throughout history.