REPORT: Gdansk Declaration — the Eastern Flank draws its own iron line

A history-laden city for a document laden with urgency

There is something deliberately symbolic about the choice of Gdansk. It is where the Second World War began, where Solidarność lit the fuse that brought down communism. On June 25, 2026, the leaders of NATO's Eastern Flank gathered in this Polish city to sign a joint declaration that many observers regard as the strongest political signal sent to the Alliance in years.

The Gdansk Declaration reaffirms the target of 5% of GDP for defense, demands a structural reinforcement of the Eastern Flank of the Atlantic Alliance, and sends an unambiguous message to those in Paris, Berlin, or Rome who continue to treat the Russian threat as a geographically remote problem. The Eastern Flank is no longer waiting. It is acting.

Who signed — and why it matters

The signatories of the Gdansk declaration include countries that have an intimate and painful relationship with Russian domination: Poland, Estonia, Latvia, Lithuania, but also Finland and Sweden, two new NATO members who drew the lessons of the Ukrainian invasion and abandoned their historic neutrality. This group does not speak about Russia from academic libraries. It knows Russia. It has lived under Russia.

The political reach of this document goes beyond its formal content. It is a de facto coalition within the Alliance — a group of countries determined not to let NATO summits dissolve into tepid compromises. They are arriving at Ankara with a pre-established position, historical legitimacy, and iron resolve. This is unprecedented in the Alliance's recent history.

Gdansk, again. This city has a unique ability to be in the right place at the right moment in European history. The declaration signed there on June 25, 2026 is not just another diplomatic communiqué. It is an act of collective resistance against Western complacency.

The 5% target: unrealistic or inevitable?

The demand to bring defense spending to 5% of GDP, as stated in the Gdansk declaration, provoked grinding of teeth in Western European capitals. For many, this target seems unrealistic: France spends around 2%, Germany has only just crossed that threshold after decades of staying below it. How does one get to 5% without massively redirecting social budgets already under pressure?

The Gdansk signatories' answer is simple and blunt: compare that cost to the cost of a war on your own territory. Poland already devotes 4% of its GDP to defense. The Baltic states have increased their military budgets at rates unseen since the Cold War. For them, 5% is not a distant horizon: it is the floor of survival in a Europe where the Russian threat is not hypothetical.

Reinforcing the Eastern Flank: concrete and steel

Beyond the percentages, the declaration demands a denser and more permanent NATO military presence on its Eastern Flank. Troop rotations — a few thousand soldiers deployed temporarily — are no longer sufficient. What the signatories want are permanent bases, pre-positioned ammunition stocks, integrated missile defense systems, and command chains that operate 24/7 without response delays.

Secretary General Mark Rutte stated at the Atlantic Council on June 25, 2026, that European allies and Canada have already invested $1.2 trillion more in defense spending between 2016 and 2026. That is considerable. But the question raised by Gdansk is: where exactly has that money been spent, and is it deployed where the threat is real?

I understand Western European governments' hesitation about the 5% target. But I want to ask them a simple question: how much does capitulation cost? How much does it cost to rebuild a destroyed Ukraine? How much does it cost to lose the credibility of Article 5? Those numbers never appear in any budget column.

An unprecedented peacetime military transformation

Poland has become, in just a few years, Europe's most dynamic military power. With more than 300,000 soldiers planned at full strength, massive acquisitions of American Abrams and South Korean K2 tanks, K9 Thunder artillery systems, and a defense budget approaching 4% of GDP, Warsaw is doing what many other allies have promised without delivering.

This transformation does not come cheap. It weighs on Polish public finances and involves difficult trade-offs. But Prime Minister Donald Tusk's government is maintaining the course with a rare political consensus in a country often divided: national defense transcends partisan lines when the threat is perceived as existential. That is a lesson Western Europe has yet to absorb.

Poland's defense industry: from dependence to autonomy

Poland is not simply buying weapons from abroad. It is investing in technology transfer, developing a national industry capable of producing munitions, armored vehicles, and missile systems. This is not only a matter of operational capability: it is a strategy of economic resilience. A country that depends on foreign imports for its ammunition is vulnerable in the event of a supply crisis.

In this context, the Gdansk declaration also carries an industrial message. The Eastern Flank countries want NATO to recognize their growing productive capacity and integrate it into the Alliance's collective strategy. They no longer want to be merely consumers of security produced elsewhere. They want to be producers of it.

Poland's military transformation is one of the most under-reported stories of this decade. A country that twenty years ago had an underfunded post-Soviet army is becoming the backbone of NATO's Eastern Flank defense. It is remarkable. And it is absolutely necessary.

Estonia, Latvia, Lithuania: three models of clarity

The three Baltic states stand as the absolute model for defense. With economies the size of French regions, they have devoted between 3 and 5% of their GDP to defense for years. They understood before anyone else that security cannot be negotiated or indefinitely outsourced. Their armies are modern, their reserves mobilizable, their total defense doctrine inspired by the Finnish model.

Estonia in particular has developed world-class expertise in cyber defense after suffering the first large-scale Russian state cyberattack in 2007. Today, Tallinn hosts NATO's Cooperative Cyber Defence Centre of Excellence. Latvia regularly alerts allies to preparations for Russian hybrid attacks — drones and missiles — as reported by Fox News on June 22, 2026. These countries live hybrid warfare daily.

The Suwalki Corridor: Europe's most-watched chokepoint

The Suwalki Corridor — that strip of land roughly one hundred kilometers long separating Belarus from Kaliningrad — is the Atlantic Alliance's most critical strategic vulnerability. If this corridor were closed, the Baltic states would be cut off from the rest of NATO by land, dependent solely on air and sea links that could be easily disrupted.

Thousands of NATO soldiers are already deployed in the region, but military experts agree that current troop levels would not allow resistance to a conventional Russian attack for long enough for reinforcements to arrive. The Gdansk declaration demands that this change — quickly. Before the Ankara summit. Before it is too late.

The Suwalki Corridor — a hundred kilometers of terrain that could decide Europe's fate. I find it hard to believe this absolute vulnerability point is still not fully secured four years after a war broke out on our doorstep. This is the kind of detail that tips history.

From neutrality to commitment: a historic shift

Finland and Sweden abandoned decades of neutrality to join NATO in 2023 and 2024. This shift is perhaps the heaviest strategic consequence, for Russia, of its invasion of Ukraine. Instead of weakening the Alliance, Putin enlarged it by two militarily very capable countries, with a border stretching 1,300 km between Finland and Russia.

Finland is particularly formidable militarily. It maintained a rigorous territorial defense doctrine throughout the Cold War, with a mobilizable reserve of several hundred thousand trained soldiers. Its defense industry is capable, its knowledge of Russian terrain intimate. By joining NATO, it brought the Alliance not only capabilities, but a strategic culture that the Western Alliance had too largely lost.

Their contribution to the Gdansk Declaration

The presence of Finland and Sweden among the Gdansk declaration's signatories is not incidental. These two countries bring the credibility of "new converts" — nations that deliberately chose the Alliance after careful deliberation, and who therefore cannot be accused of reacting to an old threat out of conditioned reflex. Their endorsement of the Gdansk message reinforces the document's legitimacy in the eyes of more hesitant allies.

Sweden in particular has a defense industrial production capacity that many other allies lack. Its company Saab produces combat aircraft, missiles, and globally recognized electronic warfare systems. Integrating this capacity into the Alliance's common strategy is a priority that the Gdansk declaration explicitly pushes toward Ankara.

Putin wanted to prevent NATO expansion. Result: he triggered the accession of two Nordic countries that add hundreds of kilometers of borders Russia must defend and tens of thousands of seasoned soldiers to the Alliance. This is the costliest strategic paradox of his rule.

Binding commitments, not wishful thinking

The Gdansk declaration is not a wish list. It is a set of requirements addressed to the Ankara summit, with precise demands: spending ramp-up timelines, monitoring and accountability mechanisms for lagging allies, concrete decisions on reinforcing military presence in Eastern Flank countries. The signatories did not want their document read politely and then set aside.

The European Parliament briefing of June 26, 2026 on the Ankara summit underscores that the agenda includes the 5% of GDP target as a central item. The Gdansk declaration thus arrives as reinforcement for this target, carrying the political weight of the countries that need it most and the moral authority of those already doing the work.

Ukraine as a de facto member

The Gdansk declaration also implies, between the lines, a position on Ukraine's future in the European security architecture. The Eastern Flank countries are among the most ardent advocates of Ukrainian integration, first into the EU, then into NATO. They know that as long as Ukraine remains in a security vacuum between Russia and the Alliance, it remains a target and a zone of temptation for Moscow.

Zelensky has stated repeatedly that only NATO membership will constitute a durable security guarantee for his country. The Gdansk countries have heard him. They are carrying that message to Ankara. The question is whether the Alliance's major powers — United States, France, Germany — are ready to open that door.

Ukraine in NATO is the scarecrow that the major Western powers brandish to justify their caution. But here is what I believe: a Ukraine outside of NATO will always be Putin's next target. A Ukraine inside NATO is a Ukraine nobody can touch anymore. The logic is simple. Fear of escalation must not become a premium on aggression.

$1.2 trillion over ten years: the true financial balance sheet

NATO Secretary General Mark Rutte recalled it on June 25, 2026 during his conversation with the Atlantic Council: European allies and Canada spent $1.2 trillion more on defense between 2016 and 2026. That is a colossal sum. And yet experts agree it remains insufficient in the face of the Russian threat's reality and the requirements of credible collective defense.

The paradox is striking: European allies have never spent more since the Cold War, and yet European security has never seemed so precarious since the same era. The threat has also changed in scale. Russia in 2026 devotes 8 to 9% of its GDP to defense and war. It produces millions of munitions annually, maintains an army of several hundred thousand men in combat. The gap between what it deploys and what the Alliance can oppose in the first phase of a conflict remains worrying.

The "tens of billions" from Ankara: what they must buy

Rutte promised that "tens of billions" in new defense contracts would be announced at the Ankara summit. For this announcement to be more than a headline, these billions must fund precise and identifiable capabilities: additional 155mm shell production lines, missile defense systems for the Baltic states, pre-positioned ammunition stocks on the Eastern Flank, electronic warfare and counter-drone capabilities. A concrete shopping list, with delivery deadlines.

Without this level of specificity, the "tens of billions" risk dissolving into procurement procedures, interministerial negotiations, and national rivalries that have always slowed European defense. The Eastern Flank, represented at Gdansk, is monitoring these commitments with vigilant attention. They know better than anyone that unkept promises carry a real geopolitical cost.

One trillion two hundred billion dollars over ten years — and we are still debating whether NATO can defend the Baltic states. Something is wrong with how we allocate defense resources. The money is there. The question is whether the strategic will to spend it effectively is also there.

The taboo that persists despite the pressure of reality

The Gdansk declaration does not explicitly mention Ukraine's accession to NATO. The topic remains officially taboo among the Alliance's major powers, who fear direct escalation with Russia. But between the lines, the Eastern Flank countries are carrying a clear message: without a prospect of Ukrainian integration, Eastern European security will remain perpetually precarious. For a Ukraine outside of NATO will always remain a potential target for future Russian aggression.

The logic is simple: if Russia accepts a ceasefire today — in whatever form — and Ukraine does not obtain robust security guarantees, Putin or his successors will simply wait a few years before trying again. The history of Russian aggressions — Georgia 2008, Crimea 2014, Ukraine 2022 — is a story of progressive escalation against states not protected by a collective alliance. Breaking this cycle requires a structural response.

What the Eastern Flank understands that the West refuses to hear

The countries that signed the Gdansk declaration have an intimate understanding of what it means to remain outside a credible security alliance. Estonia, Latvia, Lithuania — these countries lived under Soviet occupation for half a century precisely because no alliance protected them. Their accession to NATO fundamentally changed their geopolitical status. They know what that access means for sovereignty.

This is why they advocate with such conviction for eventual Ukrainian accession. Not out of Slavic sentimentalism, but out of strategic clarity: what happened to Ukraine could have happened to them, had the Alliance not existed. The difference between a state that can be attacked and one that cannot lies in a signature on a treaty. And they want Ukraine to have that signature.

The question of Ukraine's accession to NATO is the Gordian knot of all European security policy. I do not claim to have the answer on the how and when. But I know one thing: as long as this question remains unanswered, Ukraine will always be a target. And the Baltic states know that better than I do.

A coalition of the willing at the heart of the Alliance

What happened in Gdansk on June 25, 2026 is, in its way, a micro-revolution in NATO culture. A group of countries, situated on the front line of the Russian threat, decided to stop waiting for the Alliance's major powers to set the pace. They drew their own line, stated their own demands, and put their own money on the table.

It is a coalition of the willing within an alliance of sovereign states. It is healthy, vigorous, and exactly what NATO needed to shake off a torpor that Putin had begun to count on as permanent. The Eastern Flank understood before others that Alliance unity is not decreed: it is earned by example and built through action.

The ball is now in Ankara's court

The summit of July 7 and 8, 2026 has received its brief. The Eastern Flank countries have said what they expect. Mark Rutte has promised "tens of billions" in new defense contracts. Pete Hegseth still needs to clarify what Washington intends to do for its allies in the event of an attack. And the countries that have yet to reach 2% of GDP — still numerous — will have to, at Ankara, either commit to precise timelines or publicly own their choice to remain free riders on collective security.

The Gdansk declaration has drawn an iron line. It is not a line in the sand, destined to be washed away by the next diplomatic wave. It is a line engraved in the steel of European history, carried by countries that cannot afford to forget and who refuse to let their allies have the luxury of complacency.

Gdansk has drawn an iron line in European history. It is not often that we witness a moment when countries that truly know what the threat means say aloud what the major powers keep quiet out of caution. That is an act of political courage. It deserves to be heard and honored.

By Maxime Marquette, columnist

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