Danish-Swedish relations refer to the diplomatic, economic, and cultural interactions between Denmark and Sweden. These neighboring countries share a long history, marked by both cooperation and rivalry, particularly during the Kalmar Union in the late 14th century. Today, they maintain strong ties through trade, tourism, and shared cultural heritage, including the Scandinavian identity. Both nations are members of the Nordic Council, which promotes collaboration on various issues such as environmental sustainability and social welfare. Additionally, they participate in the European Union, further enhancing their economic and political connections while respecting each other's sovereignty and cultural differences.