Kaliningrad: Russia's militarized exclave remains strategic flashpoint amid NATO encirclement

El País profiles Kaliningrad, Russia's Baltic exclave surrounded by NATO members, highlighting its dual role as Russia's only ice-free winter port and a key military outpost. The piece underscores the region's strategic vulnerability and its link to Putin's nuclear signaling, though it reports no new developments. The analysis reinforces the ongoing geopolitical tension in the Baltic region.