Why Stoltenberg Is Proudest of Bringing Sweden and Finland Into NATO

Introduction: a confession that sums up a decade of deterrence diplomacy

A statement made days before the Ankara summit

Former NATO secretary general Jens Stoltenberg told the Anadolu news agency, in an interview published on July 3, 2026, that the decision he is proudest of during his decade at the head of the Atlantic Alliance is the enlargement to Sweden and Finland. He made this confession just days before the NATO summit scheduled for July 7 and 8, 2026, in Ankara, thanking Turkish president Recep Tayyip Erdoğan along the way for his cooperation on a file that had long been stalled.

This statement is not trivial. It comes at a time when Western deterrence against Russia remains central to European strategic concerns, and when several countries neighboring Moscow are thoroughly revising their own defense doctrines.

The obstacle-strewn road to membership

Two hundred years of Swedish neutrality swept away in two years

Sweden had maintained more than 200 years of military non-alignment before abandoning that doctrine in the wake of Russia's full-scale invasion of Ukraine in February 2022. Finland, for its part, already shared a border of more than 1,300 kilometers with Russia, which made its decision to join even more strategically significant.

Finland became NATO's 31st member on April 4, 2023, followed by Sweden, officially admitted as the 32nd member on March 7, 2024, after a prolonged blockage of ratification by Turkey and Hungary.

Erdoğan's decisive role in the resolution

Stoltenberg explicitly thanked President Erdoğan for helping unblock the membership process, a recognition that underscores how much behind-the-scenes diplomacy, often invisible to the public, proved decisive in this historic enlargement.

What this enlargement concretely changes on the northern flank

A NATO-Russiaborder doubled overnight

Finnish membership had the immediate effect of practically doubling the length of the land border between NATO and Russia. That is a raw geographic change with considerable military implications: Russia must now monitor and potentially defend a far larger northern flank than before, which stretches thin its capabilities already heavily committed to the Ukrainian front.

For the Alliance, it also means potential new bases, broader access to the Baltic Sea, and stronger coordination among Nordic countries that now share a common defense framework for the first time in 500 years, in the words of Swedish prime minister Ulf Kristersson at the accession ceremony.

The Baltic Sea, now nearly a NATO lake

With Sweden and Finland in the Alliance, the Baltic Sea is bordered almost exclusively by NATO member countries, with the notable exception of the Russian enclave of Kaliningrad and a stretch of Russian coastline near St. Petersburg. This geographic reality considerably strengthens the Alliance's ability to monitor, and if necessary restrict, Russian naval movements in this strategic sea.

Finland opens the door on nuclear weapons, Lithuania follows

A historic parliamentary vote in Helsinki

The Finnish parliament voted on June 17, 2026, to lift its longstanding historic ban on nuclear weapons, a change that took effect on July 1, 2026, after being signed by President Alexander Stubb. This decision now allows Finland to receive, transport, and facilitate the movement of nuclear weapons on its territory as part of allied defense.

This development, reported by Euronews on July 3, 2026, immediately inspired Lithuania, whose leading political figures agreed to remove a similar constitutional ban, according to Lithuanian president Gitanas Nausėda.

A Russian reaction that confirms deterrence is working

Former Russian president Dmitry Medvedev reacted to the Finnish decision by claiming on social media that Finland was now on the target list for Russian nuclear weapons, a statement reported by the Bulgarian outlet Fakti.bg. This threatening rhetoric, far from intimidating its neighbors, instead seems to be accelerating their doctrinal revisions.

The Ankara summit, the next stage of this dynamic

What Stoltenberg expects from the July 7 and 8 meeting

In his interview with Anadolu, the former secretary general said his main hope for the Ankara summit was to demonstrate the Atlantic Alliance's unity. That word choice is not trivial at a time when some observers point to internal tensions, notably around sharing the financial burden of defense between European and American allies.

The very fact that this summit is being held in Turkey, a hinge country between Europe and the Middle East, underscores the strategic importance NATO places on its southeastern flank, alongside its Nordic and Baltic concerns.

Displayed unity against persistent doubts

I note, as a columnist who refuses to embellish, that Stoltenberg's insistence on unity suggests precisely that it is not fully secured. Debates over military spending levels, fatigue among some publics with prolonged support for Ukraine, and national electoral calculations in several European capitals create real friction, even if it remains manageable for now.

Trump's role in this dynamic of enlargement and firmness

American pressure that paid off on budgets

On the strictly military and NATO front, it must be acknowledged that the Trump administration exerted constant pressure on European allies to raise their defense spending, pressure that contributed, among other factors, to accelerating military budgets in several countries, including Taiwan for comparison on another theater, but above all within the European NATO space itself.

This insistence on burden-sharing, though sometimes formulated abruptly by Washington, had the merit of forcing a discussion that several European capitals had avoided for decades.

A consistency that deserves credit without naivety

I am not claiming that all of this administration's foreign policy decisions are beyond criticism, far from it. But on this specific ground, that of strengthening the Westernmilitaryposture against Russia, the displayed firmness deserves recognition rather than being dismissed out of pure partisan reflex.

Russia facing a strategic encirclement it brought on itself

A paradox Putin cannot deny

The central irony of this story is that it was Russia's invasion of Ukraine that directly triggered the accession of two historically neutral countries to the Alliance it claimed it wanted to weaken. Rather than pushing NATO further from its borders, Vladimir Putin achieved the exact opposite effect: a doubled allied border and a markedly more robust Nordic posture.

This strategic paradox is now widely documented by Western analysts and is no longer seriously disputed, even by voices usually cautious in assessing the war's consequences.

New red lines drawn by Russia's neighbors

Beyond formal NATO membership, the revision of nuclear doctrines in Finland and soon in Lithuania illustrates a broader transformation: countries neighboring Russia are no longer satisfied with the collective protection of Article 5, they now demand reinforced deterrence capabilities on their own soil.

The critiques and limits of this enlargement

The budgetary weight still to be shouldered collectively

It would be dishonest to present this enlargement as cost-free. Integrating two new militarymembers requires considerable investment in infrastructure, equipment interoperability, and logistical coordination, costs that weigh on the entirety of allied budgets, particularly European ones.

Several defense experts also note that enlargement, while strategically positive, complicates decision-making within the Alliance, since each new member holds veto power over major collective decisions.

A necessary vigilance against self-satisfaction

As a columnist, I am wary of the risk of excessive self-satisfaction within the Alliance. Nordic enlargement is a real achievement, but it alone does not resolve NATO's structural challenges, notably its persistent dependence on American military capabilities for certain critical functions like satellite intelligence or heavy logistics.

The symbolic dimension for Stoltenberg personally

A pride that goes beyond the strictly diplomatic record

In his interview with Anadolu, Stoltenberg emphasized the personal dimension of this achievement, recalling that he had not initially anticipated that Sweden and Finland would join the Alliance during his tenure, unlike more expected candidacies such as those of Montenegro or North Macedonia, integrated earlier in his presidency.

This confession humanizes a process often perceived as purely technocratic, reminding us that major geopolitical decisions remain carried by individuals whose personal convictions weigh on the duration of negotiations.

A legacy that shapes current NATO policy

Stoltenberg's legacy at the head of NATO continues to influence the Alliance's current doctrine, notably on the question of openness to new memberships, a principle Stoltenberg himself defended consistently: "it is not for Russia to decide which path different European countries choose."

What this means for Ukraine, still waiting

A painful contrast with the Ukrainian file

It is impossible to discuss Nordic enlargement without mentioning the striking contrast with the situation of Ukraine, which has also aspired to NATO membership for years, without a concrete timeline ever being set, largely because of the active conflict on its territory and the reluctance of some members to commit to a scenario of direct confrontation with Russia.

This contrast highlights an uncomfortable reality: Sweden and Finland's swift accession was facilitated precisely because they were not, at the time of their application, engaged in an active armed conflict, unlike Ukraine.

A moral debt to Kyiv still to be honored

I cannot help but note that it was Ukrainian sacrifice that, indirectly, allowed Sweden and Finland to join the Alliance without major contest. This moral debt to Ukraine should weigh more heavily in discussions about its own future within Western security structures.

The next steps for Nordic and Baltic deterrence

Toward ever-deeper military integration

The coming months should see the operational integration of Swedish and Finnish forces within NATO command structures grow more concrete, with more frequent joint exercises and greater harmonization of military equipment, notably in aviation, where Sweden has a well-regarded defense industry with its Gripen fighter jets.

Lithuania, by following Finland's example on nuclear weapons, also opens the door to a possible extension of this doctrinal revision to other Baltic countries such as Latvia and Estonia, whose geographic exposure to Russia remains comparable.

A momentum that must not fade

The Ankara summit will offer a chance to check whether this momentum of strengthening the Nordic and Baltic posture translates into concrete, quantified commitments, or whether it remains at the stage of declarations of intent, a risk Stoltenberg himself seems keen to avoid by publicly insisting on the need for unity.

The view from Europe's remaining neutral countries

Austria, Switzerland, and Ireland under watch

The Swedish-Finnish example has not, to date, triggered a similar shift among other historically neutral European countries such as Austria, Switzerland, or Ireland, whose internal debates over possible membership remain markedly more cautious and politically sensitive.

This absence of movement among these countries shows that Nordic enlargement, however spectacular, has not triggered a generalized domino effect across the continent, with direct geographic proximity to Russia remaining the decisive factor in these decisions.

A realpolitik lesson for hasty analysts

This nuance should encourage caution among those too quick to announce a generalized shift in European neutrality. Each country weighs its own geographic and political exposure before considering a doctrinal shift as radical as the one experienced by Stockholm and Helsinki.

What Baltic allies still expect from the Alliance

Concrete demands for a reinforced presence

The Baltic states, on the front line facing potential Russian aggression, have for years demanded a larger permanent NATO military presence on their soil, rather than rotational deployments deemed insufficient given the scale of the threat perceived from Moscow.

The revision of Lithuanian nuclear doctrine fits directly into this logic of deterrent strengthening, with Baltic leaders believing that conventional protection alone no longer suffices to guarantee credible deterrence against a neighbor that has shown its willingness to invade a sovereign country.

A credibility test for the Alliance as a whole

NATO's ability to concretely respond to these Baltic demands, beyond statements of principle, will be an important test of the credibility of collective deterrence in the coming years, particularly if the conflict in Ukraine were to evolve into a prolonged frozen scenario rather than a clear resolution.

The economic dimension of enlargement for the defense industry

Contracts reshaping NATO's industrial map

Sweden's integration, with its well-regarded defense industry led by groups like Saab, opens new prospects for industrial cooperation within the Alliance, notably on Gripen fighter jets and air defense systems, capabilities that complement the already abundant offerings of American and European manufacturers.

Finland, for its part, brings recognized expertise in territorial defense and civil resilience, know-how accumulated over decades of preparation against a Russian neighbor never fully reassuring, and which several NATO countries now want to study closely.

A booming defense market on the northern flank

This industrial dynamic fits into a broader trend of rising European defense budgets, where military equipment orders are reaching levels unseen since the end of the Cold War, a movement accelerated directly by the perception of a lasting rather than temporary Russian threat.

Nordic manufacturers, Swedish and Finnish ones leading the way, are now positioning themselves as essential suppliers for several European capitals seeking to diversify their military procurement sources beyond American equipment makers alone.

Conclusion: a real success, work far from finished

A largely positive record for Western deterrence

Jens Stoltenberg's interview with Anadolu, however brief, sums up a major strategic transformation of the past decade: NATO's enlargement to Sweden and Finland has concretely strengthened the Western deterrence posture, doubled the allied border with Russia, and triggered a nuclear doctrinal revision among several of Moscow's direct neighbors, from Finland to Lithuania.

This success, achieved at the cost of patient and at times laborious diplomacy, notably with Turkey, deserves to be praised without excessive reservation, while bearing in mind the structural limits that remain, notably on the still-unresolved Ukrainian file.

The real test still lies ahead

The Ankara summit on July 7 and 8, 2026, will offer a first opportunity to gauge whether this strengthening dynamic continues with the same determination, or whether internal tensions over burden-sharing and national electoral calculations slow a momentum that has, so far, largely benefited collective Western security.

By Maxime Marquette, columnist

Columnist's transparency note

Who I am and my acknowledged biases

I sign this piece as Maxime Marquette, columnist for mad-m.ca. My editorial line is openly pro-Western, pro-NATO, and pro-Ukraine. I consider collective Western deterrence an essential strategic good against Russia's revisionist ambitions, and this conviction shapes my analysis, even as I strive to ground every claim in verifiable facts.

I credit the current American administration for its push toward higher European defense budgets, without this meaning endorsement of the entirety of its domestic policy choices, which I treat separately and with a more critical eye in other pieces.

What I do not know and how I worked

I cannot predict with certainty whether the Ankara summit will produce concrete commitments or remain symbolic. This piece relies on Jens Stoltenberg's interview with Anadolu, cross-referenced with multiple journalistic and institutional sources on the history of Swedish-Finnish accession and recent doctrinal developments in Finland and Lithuania. I invent no quote and no direct testimony.

Sources

Primary sources

Anadolu Ajansı, interview with Jens Stoltenberg ahead of the Ankara summit — July 3, 2026

Yeni Şafak, coverage of Stoltenberg's interview on Swedish-Finnish accession — July 3, 2026

Secondary sources

Euronews, on the revision of Lithuanian nuclear doctrine — July 3, 2026

The Moscow Times, analysis on the nuclear revision among Russia's neighbors — June 30, 2026

NATO, joint statements at Sweden's accession — official archives

Swedish government, Prime Minister Ulf Kristersson's address on NATO accession — March 2024