A historical timeline tracing Kaliningrad from its origins as Königsberg through Soviet annexation after World War II, its militarization during the Cold War, the shock of NATO and EU enlargement in 2004, and its emergence as a heavily armed Russian exclave surrounded by alliance territory. The story spans missile deployments, the Suwalki corridor, nuclear signaling, and repeated Russian warnings to the West, placing current rhetoric in a long contest over geography, security, and deterrence. This timeline was generated automatically by TimeStrands AI from Wikipedia research. Facts are sourced; framing may be imperfect.