NATO Commander Grynkewich Warns Alliance Will Break Enemy Warfighting Systems if Attacked NATO's top military commander Gen. Alexus Grynkewich warned at the Warsaw Security Forum that the alliance will destroy anything and everything supporting an attack on allied territory and break enemy warfighting systems to thwart any potential Russian assault. NATO's top military commander warned Monday that the alliance would destroy anything and everything supporting an attack on allied territory and break enemy warfighting systems to thwart any potential future Russian assault. US Air Force Gen. Alexus Grynkewich, NATO's supreme allied commander in Europe, delivered the warning during the Warsaw Security Forum in Poland, in an apparent message to Moscow. Grynkewich spoke on a panel titled Theory of Victory: How Do We Achieve Military Success Against Russia in Deterrence and Defence? on the first day of the forum.NATO Strategy To Break Enemy Warfighting SystemsHe described what he called the lethal alliance and made clear that while NATO is a defensive alliance, it is prepared to respond decisively to any assault on its 32 members. Should the adversary choose to press the attack or commit his reserves, we will break the warfighting system engaged against us, Grynkewich said. This includes not just the attacking force itself, but anything and everything that supports, sustains, and controls that force, he added.He stressed that NATO's response would not necessarily be limited to enemy troops directly involved in an assault, but could extend to the broader military infrastructure enabling the attack. Grynkewich outlined a three-pronged strategy of blocking, blunting and breaking enemy forces. My theory of victory is simple: we will block the initial attack. If the attack persists, we will blunt it and prevent enemy advance, he said on Monday.And if required, we will break the enemy's forces and the operational warfighting system that is arrayed against us. If someone is foolish enough to attack us, we will fight, he said. We will stop the attack and deny them the ability to achieve their objectives, whatever those might be. We will, in short, ensure any attack, against any ally, proves utterly futile.We stand here together in Poland today stronger than ever united in our common vision of a more balanced, more ready and more lethal alliance, Grynkewich also said. Grynkewich said NATO was already putting the strategy into action through military exercises, enhanced military readiness and investments in new capabilities. If attacked, we are ready to fight tonight, but we are not complacent, he said.Warnings Directed At Moscow Amid Rising TensionsHe did not mention Russia by name during his Warsaw address, but his warning appeared directed at Moscow. NATO's 2022 Strategic Concept also identifies Russia as the most significant and direct threat to allied security. The warning came amid heightened tensions between Russia and Western nations following a series of drone incursions and suspected sabotage operations that European countries have linked to Moscow.European officials have accused Russia of waging a campaign of hybrid warfare involving sabotage, arson and cyberattacks, alongside increasingly provocative military activity near NATO territory. In 2025, multiple Russian drones entered Polish airspace during a large-scale attack on Ukraine, prompting a response from Polish and allied aircraft. NATO launched Operation Eastern Sentry to strengthen defenses along its eastern flank.Grynkewich's remarks followed a tense weekend between Russia and Ukraine, with Moscow launching fresh strikes against Ukrainian energy infrastructure despite diplomatic efforts to reduce hostilities. President Donald Trump had announced that he had reached an agreement with Russian President Vladimir Putin to increase Russian diesel supplies to the US and global markets. The reported agreement included a waiver of certain US sanctions on Russian energy exports.Ukrainian President Volodymyr Zelenskyy accused Russia of continuing attacks on Ukrainian energy facilities, casting doubt on prospects for a broader ceasefire. Zelenskyy also accused Putin of defying Trump's ceasefire push and sent a pointed message to the White House. The tensions have also been accompanied by recent nuclear warnings from Moscow. On Sept. 30, Russia warned NATO that it could use nuclear weapons if the alliance attempted to isolate Kaliningrad, its heavily militarized Baltic Sea exclave between Poland and Lithuania.Russia Warns Of Nuclear Strikes On KaliningradAccording to a note cited by Reuters, Moscow accused NATO of pursuing a dangerous and reckless course that carried high risks of the outbreak of a direct armed conflict. Russia warned it could use its full military arsenal, including nuclear weapons, to defend Kaliningrad and raised the possibility of strikes against decision-making centers in NATO countries at the outset of a conflict.NATO Secretary-General Mark Rutte rejected the threats, emphasizing the alliance's defensive mission and calling on Moscow to end its war in Ukraine. Putin knows that he can never win from NATO, Rutte said during a Sept. 30 appearance at the Euronews Defence and Space Summit. Putin has maintained that Russia has no plans to attack European countries and wants peaceful coexistence with its neighbors.NATO Pledges Increased Defense Spending By 2035Professor Azeem Ibrahim said Russia's heavily militarized Baltic enclave has become a testing ground for hybrid warfare targeting European infrastructure. He said NATO must take Russia's Kaliningrad threat very seriously. NATO countries pledged to increase their defense spending to 5% of GDP by 2035, as demanded by US President Donald Trump. The summit's final declaration states that countries will invest at least 3.5% of their GDP annually in military capabilities and an additional 1.5% in protecting critical infrastructure.