The Great Nordic Convergence

After WWII, Finland, Sweden and Norway built Divergent Security Models in Response to the Same Threat. With Sweden's New Arctic Strategy the Last of Those Models Disappears 

Lukas Wahden 

 

 In early June, the Swedish government released a new Arctic Strategy. It supersedes a 2020 predecessor, which was representative of its time insofar as it contained little actual strategising, advocating instead for cross-border cooperation, environmental protection and sustainable development. The 2026 strategy, by contrast, squarely foregrounds military logics. It reframes the European Arctic from a region of political cooperation into a unified operational theatre, one in which Stockholm may claim much agency by offering its territory, infrastructure and military capabilities as instruments of collective deterrence.

The shift in Sweden’s tone surprised few, mirroring as it does the Arctic policy updates announced last year by Finland and Norway. All three of the states whose territories make up the European Arctic — bar Russia — are now within NATO, and all three have publicly committed to military integration, both inside the alliance and through complementary mini-lateral formats. Their Arctic strategies now echo each other in form and in substance. Each names Russia as an unequivocal threat, and the other two as indispensable allies.

 

 

Set against the war in Ukraine, this convergence of Nordic approaches to Arctic security at first sight appears self-explanatory. What makes it truly notable, however, is that it has no historical precedent. A shock emanating from Russia, the very same country that produced three divergent strategic reorientations across Fennoscandia after WWII, has this time produced a strategic convergence in the region. Military integration across the Nordics now appears a foregone conclusion, and has advanced at pace. Yet the cultural paradigm shift that drives it may run even deeper than any comparable recent reconfiguration in Europe, including Germany’s Zeitenwende or Macron’s efforts to strong-arm France’s security pivot from the south towards the northeast. Finland, Norway and Sweden survived neighbouring the Soviet Union on three fundamentally different security models. Under Putin, post-Soviet Russia has pushed all three to converge on essentially the same approach to regional defence.

It is worth dwelling on how the Nordic security cultures came about in the first place. A first factor is geography. With the northern parts of Finland, Sweden and Norway on average warmer, more densely populated, and better connected to southern metropoles than those of other Arctic states, politics in the Nordics has long played out uniformly across their national territories. Security, and life at large, in the Arctic regions of Sweden, Finland and Norway has always been inseparable from the security of their heartlands at large.

In the 1930s, Sweden, Finland and Norway then confronted the mounting threats of Nazi Germany and Stalin’s Soviet Union. Norway prided itself on having held to neutrality through WWI, and its interwar security concept was optimistic about the country’s capacity to continue staying out of trouble. It maintained official neutrality, careful diplomacy, adherence to international law, geographical remoteness, and productive relations with Britain. Norway, it was hoped, was simply too peripheral to interest Europe’s feuding great powers.

The German invasion of 1940 upended these assumptions. The Nazis cared greatly about Norwegian geography, and about its north in particular, which offered defensible access to North Atlantic sea lines of communication, to Swedish iron ore deposits, and to maritime approaches to the Soviet Union. Britain, for its part, mined Norwegian waters days before the German landings and had troops embarked for a landing of its own. Five years of occupation, the Soviet liberation of eastern Finnmark, and the scorched-earth German retreat, deeply traumatised the young country. The war had falsified Oslo’s dearly held security tenets, at catastrophic cost.

After the war, Norway rearmed decisively and abandoned neutrality. Unable to stop the great powers from caring about its coastlines, Oslo set out to ensure that the powers it favoured would henceforth commit to proactively defending them, and became a founding member of NATO in 1949. Yet Norway simultaneously imposed limits on its own membership, including no permanent foreign bases in peacetime, no nuclear weapons on Norwegian soil, and a series of restraints on allied activity near the Soviet border (which were eased by the Norwegian governments in late August 2026). The hope was that this blend of integration, deterrence and reassurance towards the Soviets would keep the narrow Norwegian north from becoming a forward platform that Moscow would read as threatening.

Finland, by contrast, had spent the best part of the 1930s nourishing a dual approach of political neutrality and defence cooperation with neighbouring states, especially Sweden. As with Norway, the Finnish approach failed to safeguard peace. In November 1939, the USSR invaded Finland, and Sweden declined to enter the war. The Finns spent the next six years fighting alongside alternating foreign invasion forces, but always with the objective of regaining their independence. During the 1941-1944 Continuation War against the USSR, Finland banked on Nazi Germany to help it regain territories lost to Moscow in 1939. When the German front against the Soviet Union collapsed, Finland switched sides to fight with the USSR against Germany in 1944-1945. The Wehrmacht operated from northern Finland against the Soviet Arctic and Murmansk, Petsamo emerged as a strategically important wedge, and the German scorched-earth withdrawal towards the south devastated Finnish Lapland.

After the war, Finland, like Norway, concluded that its neutrality had failed it. But unlike Norway, the newly Soviet-aligned Finland did not enjoy the manoeuvring space required to join any western alliance. In 1948, Finland was muscled into signing the Finnish–Soviet “Agreement of Friendship, Cooperation, and Mutual Assistance”, which gained it political independence from the USSR, but in exchange obliged it to coordinate with Moscow on security issues. Simultaneously, Finland doubled down on universal conscription, and built up a formidable military force to independently deter the Soviet Union from attacking. For Finland, the end of WWII brought official neutrality, managed accommodation with Moscow, and an independent military deterrent maintained as an absolute national priority.

Sweden, lastly, concluded from the war that its own neutrality had been vindicated, but only by a hair’s breadth. The price of non-invasion had been high. Stockholm supplied Nazi Germany with iron ore throughout the war years and permitted German troop transit across its territory to occupied Norway. Britain, for its part, weighed interdicting the ore traffic and drew up plans to occupy Swedish ore fields under cover of aiding Finland. In the north, the Finnish wars exposed the vulnerability of open terrain in any wider regional conflict involving the Soviets. Protection for Sweden, in the end, had come from concessions, but also from meaningful military capability, extensive mobilisation, and a good deal of diplomatic luck.

Sweden thus resolved after 1945 to maintain its neutrality, but also that neutrality would only hold if backed by substantial military power. Swedish defence industries were expanded, universal conscription doubled down on, and from 1945 to 1972 the country ran a nuclear weapons research programme that even brought it within range of a deployable nuclear device in 1965. Stockholm’s proposal for a Nordic defence union, meanwhile, foundered on Norwegian insistence on American security guarantees. And while Sweden committed publicly to neutrality vis-à-vis the Soviet Union, it prepared in secret to receive Western military assistance in any regional conflict.

The three resulting models — armed neutrality in Sweden, territorial defence plus accommodation of Moscow in Finland, and alliance integration plus self-restraint in Norway — held until the Soviet collapse. The result was a fragmented security region, both in the Scandinavian south and north. From Moscow’s point of view, Finland could be assumed to remain pliant and posed no threat, Sweden mattered chiefly in the Baltic, its neutrality driving a wedge between allied northern territory and Finland, and Norwegian Finnmark was unlikely ever to become a viable staging area for a NATO offensive. Two of the three countries could be dealt with on the bilateral level typically preferred by the USSR. Seen from the allied side, the Norwegian north was highly vulnerable but of considerable value for intelligence collection. Norwegian Cold War planning was structured explicitly around giving up Finnmark, holding at the Lyngen position, and waiting for allied reinforcement from further south. The European Arctic thus never became a likely frontline of bloc confrontation, which showed in the comparatively modest ground deployments on both sides.

 

 

The fragmentation of the European Arctic security region became an irrelevant issue after 1991. But while the basic strategic tenets of the Nordics lasted untouched, deeply into the post-Cold War era and beyond the 2014 annexation of Crimea, they could not survive the shock of the full-scale invasion of Ukraine. With Finland and Sweden now in NATO, the alliance’s operational area runs across the whole of Fennoscandia. The NATO-Russia border in the region grew from 196km before the war to more than 1,500km. Denmark, Finland and Sweden have been folded into the area of responsibility of JFC Norfolk, bringing the North Atlantic and the European Arctic under a single joint command. Beneath it sits Multi-Corps Land Component Command Northwest in Mikkeli, a headquarters capable of treating Finnish, Swedish and Norwegian land forces as components of one northern campaign. The Forward Land Forces battlegroup established in June 2026 under that structure is Swedish-led and based at Boden in Sweden, though it is designated FLF Finland, with its staff element at Rovaniemi. In the air domain, CAOC Bodø, activated in October 2025 as NATO’s third combined air operations centre, now plans and directs air operations across the Nordic region, the Baltic, the North Atlantic and the Barents. NATO is thus increasingly able to plan and execute a single integrated defence effort across the whole of the North.

But far from relying on NATO streamlining alone, the Nordics have also launched an ambitious supplementary programme of integration among themselves. NORDEFCO, which dates from 2009, was rebuilt after 2022. Its Vision 2030, signed in 2024, sets objectives including the ability to conduct and command multinational combined operations, host nation support and military mobility between and through the Nordic countries. The Nordic chiefs of defence followed in September 2024 with a joint Defence Concept setting out principles for acting together in peace, crisis and armed conflict. The air domain has gone furthest. In March 2023, before Sweden had even acceded, the air commanders of Sweden, Finland, Norway and Denmark signed a declaration of intent aiming to operate their roughly 250 fighters seamlessly as one force. Norway, chairing NORDEFCO this year, has set the ambition of making the Nordic region “the most integrated region in Europe within defence.” Should the war in Ukraine end, a rearming Russia would therefore face not three states with separate diplomatic and military approaches, but a group that plans as one and increasingly operates as one. A conflict there would no longer be three separate problems, such as a Norwegian delaying campaign in Finnmark, a Finnish effort fought alone, or a Swedish neutrality to be respected or violated at will, but a single campaign across one operational space against a very capable single opponent.

This is a fundamentally different outcome from the one produced by WWII and the early Cold War, and the plausible reasons are many. Russia is a weaker opponent than the Soviet Union ever was, and is seen as less predictable, raising threat perceptions accordingly. But the Nordics have changed too. Finland, Sweden and Norway are, by orders of magnitude, richer, militarily more capable and politically closer to one another than in 1945. And the alliance they have joined is not an uncertain proposition but a mature and deeply integrated organisation with seven decades behind it. From the Russian point of view, this constellation of factors, as well as the fundamentally altered security landscape of the European Arctic, should long have raised the alarm.

In the relevant Russian literature, as well as in media reporting and government statements, no such realisation seems to have sunk in, however. Some Russian commentary notes that accession gave NATO an almost continuous northern flank. Russian officials, however, still routinely speak of Arctic “militarisation”, juxtaposed with the cooperation baseline represented by the fledgling Arctic Council. But official Russia has not responded to the Nordic convergence as a convergence. Finland is addressed as a nation betraying its historical commitments, Norway barely at all. The Swedish strategy drew no Russian ministerial statements. Its most substantive mentions came from Sergei Belyaev, the Russian ambassador in Stockholm, in a RIA Novosti interview nearly three months after, and even there it was a secondary item in a conversation mostly about detained shipping.

Should the war in Ukraine end on terms that let Russia reconstitute its military, the European Arctic will pose a problem neither side has had to wrestle with before. A rearming Russia will confront not three states with separate national arrangements, but a Nordic bloc that increasingly operates as one, and that in the air already operates jointly. The asymmetry that structured the Cold War-era European Arctic is gone. Whether that configuration can produce stability is an open question. Deterrence works when the opposing side reads a posture as defensive, which cannot be said of Russia’s visible evaluations of Nordic military integration. In any case, the European Arctic is unambiguously more militarised than at any point since WWII, and whether it is safer will not be clear until the war in Ukraine, which produced this transformation, finally ends.