Finland announced on Wednesday that it will allow NATO nuclear weapons to be stationed on its soil, reversing a self-imposed ban dating to 1987 that the Nordic country had maintained since joining the alliance in 2023 after seven decades of neutrality. The Finnish parliament approved the measure by 125 votes to 61, opening up what would be NATO's longest border with Russia — stretching 1,340 kilometres — to potential nuclear deployments. Moscow warned it would respond with "political and military-technical measures" and simultaneously closed five rail connections between Russia and Finland indefinitely, though the practical impact is limited as sanctions have already severed most bilateral trade.