In a speech delivered on October 12 in Warsaw, US General Alexus Grynkevich, NATO’s Supreme Allied Commander Europe (SACEUR), outlined a firm strategy to counter any prospective Russian aggression against the alliance’s territory. Summarizing the approach as “block, blunt, smash,” Grynkevich emphasized NATO’s readiness to respond decisively to any attack on its members. He asserted that any offensive against the alliance would be met with resolute resistance, rendering such attacks futile.
Grynkevich highlighted that the strategy, described as NATO’s “Theory of Victory,” was unanimously endorsed by all 32 member states. The speech received strong applause from European leaders and defense experts, reflecting its clear articulation of NATO’s warfighting intent since the Cold War era. However, underlying concerns persist among European states about the guarantee of US military involvement in the event of a conflict with Russia, a question left unaddressed in Warsaw.
The timing of the speech coincided with renewed diplomatic engagements between US President Donald Trump and Russian President Vladimir Putin. Recent agreements between the two leaders have been met with apprehension in Europe, where there are fears the arrangements might disregard European security and jeopardize Ukraine’s military position.
NATO faces a dual deterrence challenge: first, dissuading Russia from attacking any alliance member and second, ensuring that the United States remains committed to Europe’s defense rather than pursuing separate agreements with Moscow. Grynkevich’s address was seen as an effort to reassure both European allies and Washington, but analysts warn that it may not fully succeed in either respect.
Over the past year, Grynkevich has overseen a confidential revamp of NATO’s war plans and is involved in determining the future scale of the US military presence in Europe. This reevaluation comes as European nations increasingly shoulder financial support for Ukraine’s defense, with €70 billion ($100.2 billion) pledged for 2026 and similar commitments expected for 2027. European NATO members and Canada have also pledged over $330 billion in additional defense spending for 2025 and 2026. Notably, five European nations, including Poland, now allocate more than 3.5 percent of their gross domestic product annually toward defense.
Structural changes within NATO have further shifted operational responsibilities towards European allies. Command of the alliance’s three joint force commands has been transferred to Britain, Italy, and a rotating German-Polish leadership. Europeans took over the Americans’ headquarters, while the US retained control of air, land, and maritime operational posts as well as the supreme command, a balance designed to maintain American tactical influence while increasing European engagement.
Despite these developments, doubts remain about the reliability of the US security commitment. Grynkevich acknowledged that modern warfare, dominated by drones and hybrid tactics, has blurred the lines between frontline combat and rear areas traditionally considered safer. Recent incidents attributed to Russian sabotage—such as a Russian helicopter entering Polish airspace, explosive devices near Ukrainian cargo aircraft in Germany, and arson attacks on ammunition plants—underscore the evolving threat environment.
However, Grynkevich’s Warsaw address notably refrained from explicitly naming Russia or detailing NATO’s responses to these low-intensity confrontations. He made clear that NATO’s objective is to repel Russian offensives rather than to seek outright defeat of Russia.
European leaders appear to recognize the constraints placed on Grynkevich’s message by US political considerations, particularly under Trump, who has expressed a view of Russia as a potential partner. Polish Prime Minister Mateusz Tusk’s remarks at the event underscored a stark contrast, commending Grynkevich for his realistic assessment of Russia’s intentions toward Ukraine and Europe, while implicitly highlighting doubts about the US president’s stance.
The speech underscored enduring uncertainty within Europe regarding the steadfastness of the US alliance commitment and the broader strategic balance confronting NATO in the face of Russian assertiveness.