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The Kremlin warned that Lithuania's move to allow the stationing of nuclear weapons risks escalation, with spokesman Dmitry Peskov saying Russia will take "necessary measures" in response. The warning follows Estonia's announcement that it is moving troops closer to its border with Russia, adopting a more "active defense" posture reported by the Financial Times; the Kremlin downplayed Estonia's move while emphasizing Russia's intelligence capabilities. The exchanges reflect rising tension along NATO's eastern flank as Baltic states bolster deterrence posture in response to the war in Ukraine.