NATO’s top military commander warns that the alliance will decisively respond to any Russian aggression, emphasizing a strategy to thwart attacks on allied territory.
U.S. Air Force Gen. Alexus Grynkewich, NATO’s supreme allied commander in Europe, outlined the alliance’s military strategy at the Warsaw Security Forum on Monday, emphasizing a commitment to “block, blunt, and break” enemy forces amid rising tensions with Russia.
During a panel discussion titled “Theory of Victory: How Do We Achieve Military Success Against Russia in Deterrence and Defence?” Grynkewich issued a stark warning to Moscow, stating that NATO would destroy “anything and everything” that supports an attack on allied territory. He asserted, “Should the adversary choose to press the attack or commit his reserves, we will break the warfighting system engaged against us.” This statement reflects NATO’s readiness to respond decisively to any potential Russian assault.
Grynkewich emphasized that NATO is fundamentally a defensive alliance but is prepared to take robust action if any of its 32 member nations are threatened. “If someone is foolish enough to attack us, we will fight,” he declared. “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.”
The general’s remarks come at a time of heightened tensions between Russia and Western nations, particularly following a series of drone incursions and suspected sabotage operations attributed to Moscow. Grynkewich noted that European officials have accused Russia of engaging in hybrid warfare, which includes sabotage, arson, and cyberattacks, alongside increasingly provocative military activities near NATO borders.
In 2025, multiple Russian drones entered Polish airspace during a large-scale attack on Ukraine, prompting a response from Polish and allied aircraft. In response, NATO launched Operation Eastern Sentry to bolster defenses along its eastern flank. Romania has also reported incursions by Russian drones, while Estonia has accused Russian military aircraft of violating its airspace.
Grynkewich’s statements followed a tense weekend marked by renewed Russian strikes against Ukrainian energy infrastructure, despite ongoing diplomatic efforts to de-escalate hostilities. Ukrainian President Volodymyr Zelenskyy has accused Russia of defying ceasefire attempts and continuing its attacks on energy facilities, casting doubt on the prospects for a broader ceasefire.
Amid these tensions, Russia has issued nuclear warnings, particularly concerning the Kaliningrad exclave, which is heavily militarized and located between Poland and Lithuania. On September 30, Moscow cautioned NATO that it could resort to nuclear weapons if the alliance attempted to isolate Kaliningrad. In a diplomatic note obtained by Reuters, Russia accused NATO of pursuing a “dangerous and reckless course,” which it claimed could lead to direct armed conflict.
NATO Secretary-General Mark Rutte rejected these threats, reiterating the alliance’s defensive mission and urging Moscow to end its war in Ukraine. “Putin knows that he can never win from NATO,” Rutte stated during a September 30 appearance at the Euronews Defence and Space Summit.
While Grynkewich did not explicitly mention Russia during his address, his comments were clearly directed at Moscow, especially in light of NATO’s 2022 Strategic Concept, which identifies Russia as the most significant and direct threat to allied security. “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 explained. “And if required, we will break the enemy’s forces and the operational warfighting system that is arrayed against us.”
The general noted that NATO is already implementing this strategy through military exercises, enhanced readiness, and investments in new capabilities. “If attacked, we are ready to fight tonight, but we are not complacent,” he asserted, making it clear that NATO’s response could extend beyond enemy troops directly involved in an assault to include the broader military infrastructure supporting such attacks.
In the context of NATO’s commitment to collective defense, Grynkewich sought to reassure European allies about the United States’ dedication to the alliance. He recalled positive remarks made by former President Donald Trump regarding NATO during the 2025 summit in The Hague, stating, “I was in the room and I felt the love.” He emphasized that NATO is prepared and knows how to respond to threats effectively.
As the Warsaw Security Forum brought together European political and defense leaders, the discussions underscored the continent’s ongoing challenges in addressing Russia’s aggressive actions and the need for a united front along NATO’s eastern flank. Grynkewich expressed a willingness to engage in discussions about suspected hybrid attacks if individual NATO governments wish to address their concerns.
The situation remains fluid, and NATO’s commitment to collective defense will be crucial as the alliance navigates the complexities of the current geopolitical landscape, particularly in relation to Russia’s ongoing military activities.
According to Fox News, the alliance’s resolve is clear: any aggression against a NATO member will be met with a decisive response.

