Russia’s unprovoked and unjustified war of aggression against Ukraine has fundamentally altered the Euro-Atlantic security environment. The consequences for Allied security along NATO’s Northeastern flank are acute. With Finland and Sweden now part of the Alliance, NATO’s northern geography forms a continuous arc linking the Baltic to the North American Arctic, making these theatres increasingly interdependent.
Recognizing this reality, Minister of National Defence David J. McGuinty signalled that Canada is weighing deeper security ties with Northern Europe, including via membership in the Joint Expeditionary Force (JEF), a U.K.-led multinational coalition bringing together ten countries from across Northern Europe and the Baltic states.
Ottawa should move quickly from consideration to commitment. Joining the JEF alongside like-minded Allies would be more than a symbolic gesture; it would show that Canada’s renewed defence commitments are matched by a willingness to operate within one of the most relevant and demanding frameworks shaping Allied security today.
The JEF as a Force Multiplier
Conceived at the 2014 Wales Summit, the JEF brings together high-readiness, interoperable forces designed to respond rapidly to emerging regional crises. Structurally, it sits outside NATO; in practice, it complements the Alliance by enabling faster, more flexible action in the early stages of a contingency and reinforcing NATO-led operations when required.
For Canada, that matters because the JEF operates across three interconnected theatres central to its security interests: the North Atlantic, the High North, and the Baltic Sea Region (BSR). These regions encompass the maritime and air lines of communication linking North America to Europe, including the Greenland-Iceland-UK (GIUK) Gap and the Danish Straits. They are also densely populated with critical infrastructure, from subsea data cables to energy corridors, making them both strategically vital and highly vulnerable.
As NATO Allies boost defence spending and translate the commitments made at the 2025 Hague Summit into modern deployable capabilities, the JEF framework would also offer Canada a practical mechanism to channel its renewed defence spending even more effectively, aligning capability development with the requirements of high-intensity operations alongside like-minded partners.
Canada as a Natural JEF Partner
Canada is well-suited to the JEF because it is already strategically linked to the very theatres the initiative was designed to defend. As an Arctic and North Atlantic power with sustained military presence in the Baltic since 2017, Canada is not a peripheral stakeholder but an embedded actor across the JEF’s core operating space.
Through exercises, patrols, and missions under NATO, Canadian forces already train and operate alongside JEF members across the High North, North Atlantic, and Baltic Sea. As the framework nation for NATO’s Enhanced Forward Presence (eFP) in Latvia, Canada plays a direct and consequential role in deterring aggression on the Alliance’s Northeastern flank. Its participation in Exercise TARASSIS in 2025—a JEF-led exercise rehearsing responses to a crisis in the BSR—further illustrates the extent to which Canadian forces are already integrated into the operational patterns the JEF is meant to enable.
The same relevance applies in the High North and across Canada’s Arctic flank. Through initiatives such as Arctic Sentry, Canada cooperates with JEF members to enhance surveillance and domain awareness in an increasingly contested area. Russian military activity, infrastructure vulnerabilities, and intensifying competition have made the High North strategically inseparable from Baltic and North Atlantic security. Yet, while Canada works alongside JEF members in these regions, it remains outside the initiative’s structure shaping Allied responses to security challenges. JEF membership would thus help correct this gap by aligning Canada’s deep operational presence in these environments with the structures needed to strengthen and scale it.
Canada’s Contribution to a More Demanding Regional Security Environment
The case for Canadian JEF membership rests as much on contribution as it does on benefit. Canada’s invitation to the most recent JEF leaders’ meeting in Helsinki reflects a clear recognition among member states that Canada brings both meaningful capabilities and political weight to the initiative’s continued evolution.
As a major actor across the JEF’s core theatres, Canada’s accession would expand the breadth and depth of the initiative’s political and military cooperation from the North Atlantic to the Baltic. It would, in effect, consolidate the JEF into a veritable Euro-Atlantic framework—broadening its reach, sharpening its operational effectiveness, and reinforcing its deterrence credibility.
In the BSR, Prime Minister Carney has emphasized Ottawa’s unwavering support for NATO’s Article 5, alongside plans to expand Operation REASSURANCE from a battlegroup to a brigade-level formation, backed by additional personnel, pre-positioned equipment, and improved sustainment. Integration into JEF would build directly on these efforts by enhancing interoperability and operational coordination deterrence across NATO’s Northeastern flank.
In the High North, Canada brings a complementary set of capabilities. Its capacities in Arctic surveillance and communications, maritime patrol, and domain awareness are directly aligned with the JEF’s operational priorities and highly relevant in a region where a capable response to Russia’s expanding military activity requires continuous presence, rapid response capability, and close coordination among Allies. As Ottawa invests heavily in its future Arctic posture andexpands its icebreaker fleet, its ability to operate effectively in these conditions—and thus contribute to the JEF’s mandate—will only increase.
Canada’s contribution is not without caveats. It has only recently met NATO’s previous spending benchmark of 2 per cent of GDP as a share of defence expenditure, while JEF members have moved faster and further, investing heavily advanced, operationally proven capabilities and systems. If Canada is to become a fully credible partner within the JEF framework, it will require sustained, targeted investment to ensure its own capabilities meet that standard.
From Rhetoric to Credibility
Minister McGuinty has acknowledged that Canada is “focused on rebuilding the Canadian Armed Forces [CAF] from the top down and bottom up,” and that any further steps such as the JEF and beyond may have to wait. Such an argument for strategic patience, however, is unconvincing.
The security threats facing Canada and its NATO Allies require action today. Ottawa should move quickly to secure JEF membership and align its defence planning more closely with the coalition’s priorities across the Arctic, North Atlantic, and Baltic regions. That will require deeper operational integration with JEF partners, including expanded participation in exercises and planning structures. Just as importantly, the government should frame JEF membership as part of a broader northern defence strategy complementary to NATO, while sustaining the defence investment needed to ensure Canada remains a credible and capable contributor to collective security.
More than a decade on, the JEF has established itself as a credible and increasingly indispensable pillar of European security complementing and reinforcing NATO’s deterrence and defence posture along the Northeastern flank. Accession to the JEF would further anchor Canada within the evolving architecture of northern European and North Atlantic defence, strengthening interoperability with a cohort of capable, like-minded partners. Just as importantly, it would send a clear signal: Canada’s renewed defence commitments are not merely declaratory but matched by a willingness to share today’s collective defence burdens.
Bio: Matthew T. Jablonski is an Officer at the NATO Parliamentary Assembly. While independent from NATO, it serves as an essential link between the Alliance and its citizens and regularly publishes reports on issues critical to transatlantic security such as those related to the High North and Baltic Sea Region. Previously, Matthew worked at the International Committee of the Red Cross, European External Action Service, and European Council on Foreign Relations. He is a graduate of Sciences Po Paris.
The views expressed in this op-ed are the author’s own and do not necessarily represent those of the Institute, its staff, or the NATO Parliamentary Assembly.
