COMMENTARY: Article 5 Weakened — Trump's America Is Eroding Its Promise to Defend Europe

Introduction: The West's Most Precious Guarantee Is Being Chipped Away

A Treaty Text, a Changing Reality

There is, in the security architecture of the West, a sentence that has guaranteed seventy years of relative peace on the European continent. It appears in Article 5 of the North Atlantic Treaty, signed in 1949: an attack on one ally will be considered an attack on all. Five words, in substance. A promise of extraordinary density. And yet, since the declarations of Pete Hegseth in Brussels on June 18, 2026, this promise no longer holds the same value it did only a few months ago.

Technically, the United States has not withdrawn its signature from Article 5. Legally, the treaty remains in force. But the credibility of a security guarantee is not a legal question — it is a question of perception, capacity, and perceived willingness. And on these three dimensions, the Trump administration has systematically degraded the value of the American promise over several months, and particularly since Hegseth's shattering speech at Alliance headquarters.

Why Article 5 Is Fuzzier Than It Appears

To understand what is happening, one must first understand what Article 5 actually says — and what it does not say. The article stipulates that each ally will take "such action as it deems necessary" to respond to an attack on another member. This formulation — "such action as it deems necessary" — imposes no specific obligation to deploy troops. It leaves each sovereign country free to decide how to respond. In practice, Article 5 deterrence has always rested not on its text, but on the certainty that the United States, the Alliance's most powerful nation, would respond militarily and massively to any aggression against an ally.

This certainty is precisely what Hegseth is eroding. In March 2026, asked about the American commitment to NATO's collective defense, Hegseth had responded that it was "a decision that will be left to the president." In June, he announced reductions to US contributions to the NATO Force Model, withdrawing critical capabilities — aircraft carriers, tanker aircraft, fighters, drones — from the inventory available in a crisis. The American promise still exists on paper. In practice, it is being hollowed out of its operational substance.

The NATO Force Model — The Concrete Architecture of Collective Defense

What the NATO Force Model Is and Why It Matters

To concretely understand what the degradation of the American commitment means, one must understand the NATO Force Model (NFM). Created after Russia's invasion of Ukraine in 2022, the NFM is the mechanism through which allies commit to providing specific troops, equipment, and capabilities that the Supreme Allied Commander Europe (SACEUR) can call on at short notice in a crisis. It is, in summary, the catalog of forces the Alliance can actually deploy — not vague promises, but concrete commitments with defined deployment timelines.

The United States contributed to the NFM with a set of particularly critical and short-term irreplaceable capabilities: a complete carrier strike group (aircraft carrier and escort ships), long-range tanker aircraft, advanced fighters, and surveillance drones. These systems represent decades of technological development and cannot be recreated quickly even with sharply rising defense budgets. The Trump administration announced reductions to these NFM contributions — and according to Mark Rutte, this reduction has already begun to take effect. "The question came up yesterday: is this change immediate? Yes, it is immediate," the NATO Secretary General confirmed on June 18.

The Capability Gap Opening in Europe

The direct consequence of this partial withdrawal is the opening of a real capability gap in European defense. A senior NATO official publicly acknowledged — which is in itself extraordinary — that "not everything" the United States withdraws can be "entirely replaced" by allies. NATO's Supreme Allied Commander Europe, US General Alexus Grynkewich, is already developing contingency plans to protect Europe in the absence of the American assets that will disappear from the NFM.

To put this in perspective: in 2025, the United States devoted approximately $845 billion to defense, compared to $559 billion for all other Alliance members combined. Even with the 90 billion euro increase in European spending in 2025, the gap remains abyssal. And the most critical capabilities — command and control systems, power projection logistics, long-range air superiority — are not bought overnight, even with money.

Hegseth's March Declaration — The Early Warning Ignored

"It's a Decision Left to the President" — The Time Bomb

To understand the trajectory in which the Trump administration has engaged NATO, one must go back to March 2026. At that point, barely had the operation against Iran been launched, Hegseth was asked at a Pentagon briefing by Reuters: do the United States remain committed to NATO's collective defense? His answer had seemed anodyne to some, but was in reality of extreme gravity: "As it relates to NATO, that's a decision that will be left to the president."

Hegseth had stopped just short of formally denying the commitment, but had explicitly refused to reaffirm it, framing the American commitment to Article 5 as a conditional presidential prerogative tied to allies' behavior during the war against Iran. He had named France, Italy, Spain, and the United Kingdom as allies who had raised "questions, obstacles, or hesitations" during base access requests. The underlying message was clear: if you don't cooperate with our chosen wars, don't count on us to honor Article 5.

Conditionalization as New Doctrine

What the March declaration, then the June speech reveal, is a doctrine of Article 5 conditionalization that has never existed in Alliance history. Until now, the American commitment to collective defense was presented as unconditional in principle, even if its practical modalities remained flexible. Trump began questioning it during his first presidency — but his own generals and defense secretaries had systematically reaffirmed the American commitment behind his back. This time is different: it is Hegseth himself, the principal American military official, who is publicly reshaping doctrine.

Conditionalization takes three simultaneous forms: financial (American dues to NATO will be reduced if allies do not reach spending targets), capability-based (US contributions to the NFM are being reduced), and political (the decision to honor Article 5 depends on the president and allies' behavior). These three dimensions reinforce each other to create a fundamentally different American security guarantee — even if no treaty text has been modified.

The Reduction of US Troops in Europe — Numbers and Reality

The Progressive Disengagement: Concrete Numbers

The reduction in American engagement in Europe is not just a doctrinal matter — it is already visible in deployment statistics. Hegseth himself indicated in his June 18 speech that the United States had reduced troop levels in Europe to pre-2022 levels, with the redeployment of a combat brigade last year and an additional reduction of 5,000 soldiers earlier in 2026. In May 2026, the United States had announced the withdrawal of 5,000 soldiers from Germany. Simultaneously, 4,000 soldiers were initially announced for withdrawal from Poland, before Trump reversed this decision and instead promised 5,000 additional soldiers to a country already hosting 10,000 American soldiers in rotation.

These figures illustrate a strong trend: the American military presence in Europe is in net reduction, with targeted exceptions for allies judged politically "deserving" (like Poland, which spends 4% of its GDP on defense and hosts American bases). Countries that do not meet Hegseth's criteria — insufficient spending, hesitation over Iran — will see their concrete American protection diminish, even if the text of Article 5 formally remains in force.

The US Congress as Last Bulwark — But for How Long?

There is an institutional counterweight to unilateral reduction of US forces in Europe: the US Congress has legally mandated a minimum level of forces in Europe, and any reduction below this threshold requires notification and potentially legislative approval. This is precisely why Hegseth specified that the six-month review will involve "consultations with Congress." This is not a gesture of goodwill — it is a legal obligation.

But the current US Congress, with its strong Republican majority, is increasingly disinclined to constrain the Trump administration on foreign policy matters. The "YOLO caucus" — a handful of Republican senators at the end of their terms who no longer have anything to fear electorally — represents the only group of Republicans likely to resist. The others align. And if Trump and Hegseth decide to push for troop reductions in Europe, the legislative obstacles will likely be surmountable.

The Nuclear Arsenal — The One Commitment That Remains

The Nuclear Umbrella: Last Rampart of an Eroded Promise

In the landscape of degradation we are describing, there is one firm point, one commitment that the Trump administration explicitly maintains: American nuclear weapons stationed in Europe will not be withdrawn. Hegseth was clear on this point, and to illustrate it, NATO's Nuclear Planning Group published on June 18 its first statement in nineteen years, reaffirming that "the Alliance's strategic nuclear forces remain the highest guarantee of the security of allies."

This maintenance of the nuclear arsenal in Europe is both reassuring and profoundly insufficient. Reassuring because nuclear deterrence remains the ultimate guarantee against large-scale existential aggression. Insufficient because nuclear deterrence does not cover the full spectrum of threats Europe faces. A limited Russian incursion into Baltic territory — a scenario often cited by analysts as a "gray zone" strategy — would probably not trigger an American nuclear response. It is precisely in this conventional space between peace and nuclear conflict that the conventional capabilities withdrawn from the NFM were indispensable.

The Conventional-Nuclear Decoupling and Its Dangers

The Hegseth strategy thus creates a dangerous paradox: nuclear umbrella maintained but critical conventional capabilities withdrawn. This decoupling sends an ambiguous message to Moscow. On one hand, Washington says: "We would destroy you nucularly if you attacked a NATO ally in an existential manner." On the other: "But we have withdrawn the capabilities that would allow us to stop you quickly and conventionally in a low or medium-intensity conflict." This asymmetry creates precisely the zones of ambiguity in which aggressors thrive.

Leading military strategists, cited in several analyses published in recent weeks, have warned that the weakening of the European conventional response lowers the nuclear conflict threshold. If conventional forces are no longer sufficient to stop an aggression, escalation to nuclear extremes becomes faster, more likely, and therefore more dangerous for everyone. This is one of the fundamental lessons of military strategy since the 1960s — and it appears to have been forgotten in Washington.

Deterrence as a Perception Phenomenon — Why Form Matters as Much as Substance

Hegseth's Words Create a Strategic Reality

In deterrence theory, there is a fundamental truth often underestimated: deterrence is a perception phenomenon. What matters is not only what you can do — it is what your adversary believes you are willing to do. Article 5 deterred Soviet then Russian aggression for decades not because the United States necessarily had the capability to respond instantly to any attack, but because the Soviet Union was convinced they would do so, with all their power.

When Hegseth calls his allies "shameful" in public, when he conditions American dues on allies' behavior, when he says Article 5 is "a decision left to the president" — these words degrade the perception of American willingness to honor its commitments. Even if physical capability remains partially intact, the degradation of the perception of American willingness suffices to weaken deterrence. Putin does not only make military capability calculations — he makes political calculations. And political calculations include: "Is this man, this president, this Secretary of War, really willing to start a war to defend Estonia?"

The Signal Effect of the American Posture

There is a concept strategists call the "credibility signal." Every public statement from a head of state or government about defense intentions sends a signal that is analyzed and interpreted by all strategic actors. The series of signals sent by the Trump administration since the start of 2025 composes a coherent picture: the United States is progressively disengaging from the European security guarantee, and this disengagement is conditional on factors that can change from one administration to the next.

This signal is now in the public domain. Russian, Chinese, North Korean, and Iranian chancelleries have received, analyzed, and integrated it into their own strategic calculations. The window of opportunity for risky action has widened. The perceived risk of a firm American reaction has decreased. This does not mean war is imminent — but it means that the conditions for an aggressive military adventure have improved from the perspective of Western adversaries. That is the direct, measurable, and inevitable consequence of the Trump administration's rhetorical and doctrinal choices.

The Allies' Reaction — Between Resignation and Resurgence

The Spending Allies — The Polish and Baltic Model

Allied European reactions to the degradation of the American guarantee are profoundly unequal, and this inequality reflects their geographical situation and their historical strategic lucidity. The countries closest to the Russian threat — Poland, Estonia, Latvia, Lithuania, Finland, and Norway — have long understood that security has a price and integrated it into their budgets. Poland spends close to 4% of its GDP on defense, well above Hegseth's 3.5% target. The Baltic states are on similar trajectories.

These countries also have the lucidity to maintain positive American relations, not to join public criticism of Trump, and to position themselves as the "top students" of the Hegseth review. Poland is in active discussions to host a permanent American base — which would provide it an enhanced security guarantee independent of the review's results. This strategy is pragmatic and understandable. It also illustrates a painful reality: two-speed NATO is already a reality, with heavily protected allies and others much more exposed.

The Major Western Allies — The Delay That Costs Dearly

At the opposite end of the spectrum are the major Western European allies. Germany, spending approximately 2% of its GDP on defense after years of chronic underinvestment, must massively redirect its budgetary priorities. France, maintaining its independent nuclear deterrence and its force projection capabilities, finds itself in an intermediate position but remains below the new targets. Italy, Spain, and Belgium are even further from the mark.

These countries were also the most criticized by Hegseth for their behavior during the Iran war. They form the base of what the American administration calls the Alliance's "free-riders" — those who benefit from the security guarantee without bearing their fair share of the costs. The rhetoric is partially accurate. But collective punishment — reducing protection for all, including the good students — is counterproductive and dangerous.

The Autonomous Europe — A Project Moving Too Slowly

The European Defense Initiative — Promises and Limits

The current Atlantic crisis has given new impetus to the project of autonomous European defense. Initiatives like the Freyja ballistic missile interceptor project between Germany and Ukraine, the drone packages funded by frozen Russian assets, or the G7 decision to authorize licensed production of missiles — all these developments point to a European attempt to regain control of its own security. The political will is real, and it is new.

But the road remains long. Europe does not yet have an integrated military command independent of NATO/United States. Military communication systems, satellite intelligence, operational command structures remain deeply integrated with Washington. The technical interoperabilities built over seventy years cannot be replicated in a few years. And above all, the European defense industry still lacks the large-scale production capacity that would allow filling the gaps left by the American withdrawal.

The Paradox of Autonomy and Alliance

There is a fundamental paradox in the current situation: American pressure for Europe to take charge is right on the diagnosis but counterproductive in method. An autonomous European defense would be an asset for the global West — it would free American capabilities for other theaters and strengthen collective resilience. But autonomy is built through cooperation and trust, not humiliation and threats. By degrading Atlantic trust, the Trump administration makes more difficult precisely the transition it claims to want to facilitate.

European allies wondering whether Washington can be counted on in a crisis are less inclined to invest in systems interoperable with the United States and more inclined to seek national alternatives. This retreat toward national solutions will further fragment the European defense industry, which needs integration and pooling to be competitive — not a return to national silos. Here again, the Trump method is self-sabotaging.

What Allies Should Say — And What They Don't

The Diplomacy of Polite Silence and Its Limits

Since Hegseth's June 18 speech, the official reaction of European governments has been, for the most part, a blend of diplomatic understanding and muted protest. Secretary General Rutte highlighted defense spending increases and insisted on Alliance unity. British Defense Secretary Dan Jarvis said he was "working tirelessly" without specifying on what. No one among the principal allies dared to publicly say what everyone thinks privately: that the treatment inflicted on the Alliance by Hegseth is shameful, that conditioning Article 5 to budgetary indicators is a betrayal of Alliance fundamentals, and that Putin is watching all of this with satisfaction.

This polite silence is understandable — diplomacy requires restraint. But it also has a cost: it allows Washington to believe its method is acceptable, that it provokes no substantive reaction, that humiliation can continue without consequences. European allies would do well to find firmer language, not to create a rupture, but to indicate clearly that Alliance fundamentals cannot be renegotiated by a twelve-minute speech in Brussels.

The Moment for Courageous European Leadership

This moment calls for European leadership that few current leaders seem ready to assume. Someone must say clearly that Article 5 cannot be conditional without destroying its fundamental value. Someone must recall that allies who refused base access for the Iran war did not violate the NATO treaty — they respected it. Someone must explain that European "free-riding," as real as it may be, does not justify blackmail over collective security — because collective security is precisely what prohibits blackmail between allies.

This courageous leader has not yet spoken. France has a discourse on strategic autonomy, but cannot represent all allies. Germany is still too engaged in its own military reconstruction to have a strong voice on the Atlantic stage. The Baltic states and Poland, which have the clarity of vision, are too dependent on Washington to openly criticize it. There is a European leadership vacuum at the precise moment it would be most necessary, and this vacuum is a strategic vulnerability as much as the reduction of American NFM capabilities.

The Trump Paradox — Right Diagnosis, Wrong Method

What Trump Is Right to Say

The editorial stance of this commentary would be incomplete if it did not acknowledge the elements of truth in the American critique. Europe did indeed underinvest in its defense for decades. It benefited from the American umbrella excessively, preferring social spending to military investments. It often had a discourse on values and rule of law while leaving the United States to pay the bulk of the security bill. This reproach is legitimate, and Trump is not the first to formulate it — Obama himself had tried, with more tact but the same substance.

The pressure for Europe to take its defense seriously is, in its substance, right. The Hague summit had set the 5% GDP target — an ambitious but not absurd objective for developed economies whose security is threatened. The Baltic states, Poland, and Finland — already spending 3 to 4% of their GDP — show it is possible. The 90 billion euro increase in European spending in 2025 shows that pressure produces results.

Why the Method Destroys the Results

But here is the fundamental contradiction: the method chosen by Hegseth — public humiliation, conditionalization of Article 5, threats over dues, punitive review — destroys precisely what it wants to build. It destroys Atlantic trust, which is the cement of all real military cooperation. It creates resentments that will last years after Trump leaves. It offers Moscow and Beijing a window of opportunity that a united Alliance would have closed for them.

You can obtain allies spending more through coercion — you cannot obtain real cooperation, intelligence sharing, enthusiastic operational coordination, treating American soldiers like their own soldiers — if you have first publicly humiliated them. Serious military alliances rest on mutual trust, the feeling of a common objective, and mutual respect. The Trump administration has seriously damaged these three pillars. The resulting defense spending increases will be real. The deep cooperation that makes these expenditures effective will be far more fragile.

Ukraine and the NATO Guarantee — The Human Cost of Lowered Credibility

Why NATO Solidity Matters for Kyiv

Throughout this analysis of the degradation of the American guarantee, one concrete reality must never be lost from view: human beings are dying in Ukraine while this crisis unfolds. Zelenskyy and Ukrainian soldiers are holding their lines against sustained Russian assaults, noted even by Hegseth in his June 18 speech. Their resistance rests partly on the conviction that the West will remain united behind them — that Atlantic deterrence will keep the conflict within its current dimensions and prevent Putin from feeling authorized to extend his ambitions beyond Ukraine.

Every degradation of Article 5 credibility sends a dangerous signal to Moscow: the Western response to new aggression will be less certain than it once was. This signal arrives directly in the Kremlin's strategic calculations. The war in Ukraine is not an abstract geopolitical matter — it is a real war, whose trajectory depends in part on the robustness of Western deterrence. Weakening Article 5 in this context means weakening Ukraine as much as Europe.

Russia as the Beneficiary of Every Atlantic Crack

The Russian general does not decide on an offensive by reading academic articles on NATO doctrine — he analyzes the concrete behavior of the United States and its allies. When Hegseth says Article 5 is "a decision left to the president," when Force Model reductions are immediate, when allies quarrel publicly over defense budgets — Moscow integrates all of this as a reduction in risk for its own adventures. The weakening of Article 5 is not neutral — it is a strategic gift to Europe's enemy.

This link between the Atlantic crisis and Ukrainian security is perhaps the most important lesson of this entire period: NATO's solidity is not just a European matter. It is a global matter of deterring aggression, defending the liberal world order, and protecting democratic values in the face of authoritarian regimes. Zelenskyy is not only the defender of Ukraine — he is the defender of the ideal that NATO is supposed to protect. And this ideal requires an unconditional guarantee, not one conditioned to percentages of GDP devoted to defense.

The Ankara Summit and the Decisive Weeks

The Last Chance to Limit Damage Before the Irreversible

The NATO summit in Ankara on July 7 and 8, 2026 represents the next critical moment in this crisis. Mark Rutte has asked allies to present "clear, actionable, and credible" plans to reach defense spending targets. If enough allies arrive with convincing trajectories toward 5% of GDP by 2035, Hegseth might moderate the review's conclusions — at least formally. Ankara may be the last opportunity for a certain return to normalcy before the six-month review conclusions crystallize reductions in a potentially irreversible manner.

But optimism is difficult to sustain. No European government can, in two weeks, transform multi-year budgetary trajectories. Plans presented at Ankara will necessarily be conditional commitments, long-term projections, statements of intent. Hegseth will evaluate them according to his own criteria, and his criteria evaluate not only figures but also behavior regarding the Iran war. This punitive bias will make it difficult for several allies to obtain a "pass with flying colors," even with good financial trajectories.

What Can Still Be Preserved of the Atlantic Promise

There remain elements of the American guarantee not immediately at stake: the nuclear arsenal in Europe, participation in NATO command structures, joint military exercises, and the legal treatment of Article 5 as a commitment of principle. These elements are not negligible. They maintain a credibility floor even if the ceiling has been significantly lowered by Hegseth's declarations. A weakened Article 5 is not a dead Article 5.

What can still be preserved is a common sense of urgency. If European governments emerge from Ankara with credible commitments, if the European defense industry accelerates its production, if capabilities withdrawn from the NFM are replaced by equivalent European contributions — then the partial American disengagement can become a driver of positive transformation, even if its method is regrettable. Europe can seize this crisis as an opportunity to grow — not because it freely chooses to, but because it no longer has a choice. It is a maturity acquired under constraint, but it is maturity nonetheless.

The Institutional Legacy of the Crisis — What Trump Will Leave to NATO

The Durability of Damage Beyond Trump

A question often asked behind closed doors by Atlanticist analysts is: if a new American administration arrives in 2029, can it simply reaffirm Article 5 and rebuild trust as if nothing had happened? The honest answer is no, not entirely. The damage done to Alliance credibility by Hegseth's declarations, the conditionalization of dues, and the NFM capability reductions will have lasting effects that transcend the Trump presidency. Three reasons explain this durability.

First, allies that have massively invested in alternatives to the American presence — national defense industry, regional commands, bilateral security agreements — will not dismantle these investments even if Washington returns to more Atlanticist rhetoric. Second, chiefs of staff and military planners who have integrated reduced American reliability into their defense scenarios will not easily revert to plans assuming unconditional American availability. Third, Moscow will not forget what it has learned about the limits of Atlantic cohesion — and it will factor it into its strategic calculations over the long term.

The Possible Reconstruction — Conditions for a Return to Normalcy

The reconstruction of Atlantic credibility is difficult but not impossible. It requires, at minimum, a new American administration that unconditionally reaffirms Article 5, explains that the capability reductions were temporary, and commits to rebuilding NFM contributions. It also requires European allies who have genuinely increased their defense spending and developed credible capabilities — making the relationship more balanced and therefore more durable. And it requires that the Kremlin has been sufficiently deterred by European defense investments from having attempted an adventure during the vulnerability period.

This reconstruction scenario is possible. But it is not assured. The NATO we will know in 2030 will probably differ from that of 2025 — either a more balanced and robust Alliance where Europe has genuinely taken charge of its conventional defense, or a weakened, two-speed Alliance whose credibility against Moscow is no longer what it was. The path between these two destinations depends on the political choices made in the coming months and years — in Brussels, in Washington, in Moscow, and in Kyiv.

Conclusion: What Article 5 Is Still Worth

A Weakened Guarantee but Not a Dead One

At the end of this analysis, the honest question is: what is Article 5 still worth, after Hegseth's June 18, 2026 declarations and the accompanying American disengagement trajectory? The answer is nuanced but troubling. Article 5 is not dead — the United States maintains its nuclear arsenal in Europe, still participates in NATO's command structure, and the treaty formally remains in force. In the event of massive and obvious aggression against a major ally, an American response remains probable.

But the guarantee has been measurably degraded on several dimensions. Its perceived credibility has diminished — particularly for low or medium-intensity conflict scenarios in Eastern Europe. Its operational capabilities have diminished — with NFM reductions and troop withdrawals. Its conditionality has increased — linked to defense spending, behavior during American out-of-area wars, and the mood of an unpredictable president. This triple movement of degradation is real, even if its full extent will only be known at the conclusion of the six-month review.

The Future of the Promise — What Can Still Be Saved

The future of Article 5 and the American security guarantee in Europe depends on several factors we do not control. It depends on the results of the Hegseth review. It depends on the Ankara summit and the spending plans allies will present there. It depends on the American political trajectory — the Trump presidency ends in January 2029, and a different administration could restore a more traditional language. It also depends on the speed with which Europe itself develops credible and autonomous defense capabilities.

What is certain is that the era of the unconditional guarantee, of the American promise with no counterpart demanded, is over. It likely was already before Trump — his first presidency and even Obama's criticisms had announced it. But it is under this administration that it ends formally, openly, without ambiguity. The Europe that emerges from this period will have to be a Europe that defends itself, funds its own security, and no longer counts on an America guaranteeing its security out of idealism. Perhaps it is an adult Europe. But it is a more vulnerable Europe than the one we knew.

Primary Sources

NPR: Hegseth announces review of US forces in Europe and "NATO 3.0" in Brussels — June 18, 2026

BBC News: Hegseth renews NATO criticism, announces review of US presence in Europe, NFM reductions — June 18, 2026

Großwald European Defence Intelligence: Article 5 "will be left to the president" — Hegseth declines to reaffirm NATO collective defense — March 31, 2026

Secondary Sources

Full speech by Pete Hegseth at the 2026 NATO Defense Ministerial — US Department of War, June 18, 2026

New York Times: Hegseth berates NATO allies for "shameful" response to US war in Iran — June 18, 2026

Al Jazeera: Pentagon chief announces review of US forces in Europe — NFM reductions, Congress consultations — June 18, 2026

CNBC: Hegseth warns some NATO allies will "fail" defense review — US/Europe budget comparison — June 18, 2026

NATO: Official definition of Article 5 and collective defense — updated 2025