The document discusses the geopolitical relationship between Lithuania and the Russian exclave of Kaliningrad. It provides historical context on how Kaliningrad was formerly Prussian and German territory before becoming part of Russia after World War 2. Economically, visa-free travel between Kaliningrad and the EU has been a security concern for Russia. This has hindered cooperation between Russia and Lithuania on other political issues and stalled development in Kaliningrad. Culturally, Kaliningrad has a mix of German and Russian influences due to its history.