Russia has issued a formal diplomatic warning to NATO, stating it would consider using nuclear weapons if the alliance attempted to cut off Kaliningrad, its militarized exclave on the Baltic Sea.
In a document sent to NATO and seen by Reuters, Moscow accused the alliance of pursuing a 'dangerous and reckless course' that could lead to a direct armed conflict. The warning included the possibility of 'Russian strikes against decision-making centers in NATO member states right from the outset.'
Russia stated it would be prepared to use 'the entire arsenal of forces and capabilities at its disposal, including nuclear weapons,' if NATO countries moved to isolate Kaliningrad from the rest of Russia. The exclave, wedged between Poland and Lithuania, is heavily militarized and slightly larger than the US state of Connecticut.
NATO responds
NATO Secretary General Mark Rutte rejected Russia’s allegations, stating in a response seen by multiple outlets that the alliance is defensive in nature. Rutte added: 'Stop the nuclear threats. This is absolutely not called for and not helpful.'
In its written response, NATO also emphasized that none of its exercises or activities pose a threat to Russian territory. The alliance further called on Russia to end its invasion of Ukraine and cease 'irresponsible nuclear rhetoric.'
Russian accusations and rhetoric
Russian Foreign Ministry spokeswoman Maria Zakharova accused NATO of 'Russophobia' and claimed Western leaders were 'ready to wage war with Moscow.' She stated: 'If Europe attacks Russia, it will be a completely different sort of war – a very short war.'
Russian embassies in the UK, Ireland, and Belgium amplified these warnings via social media and state media, alleging that NATO was preparing an air and naval blockade of Kaliningrad and the surrounding region. Moscow described these actions as 'playing a dangerous game.'
Geopolitical context
Kaliningrad hosts significant Russian military assets, including elements of the Baltic Fleet, and serves as a strategic pressure point for Moscow against NATO’s eastern flank. Analysts note that Russia has repeatedly used nuclear threats in the past to deter Western support for Ukraine, including veiled references to tactical nuclear attacks and placing nuclear forces on high alert in 2024.
NATO has consistently denied any aggressive intent toward Kaliningrad, framing its activities as defensive exercises. The alliance has urged Russia to refrain from escalatory actions and return to diplomatic channels.