Canada has signaled fresh interest in joining one of the world’s most ambitious next-generation military aviation projects, adding a new chapter to the country’s long-running effort to modernize its fighter fleet. Defense Minister David McGuinty recently indicated that Ottawa is eager to learn more about the Global Combat Air Program (GCAP), the trilateral initiative led by the United Kingdom alongside Italy and Japan that aims to develop the sixth-generation Tempest fighter aircraft.
The remarks, made during a visit to Tokyo, come at a time when Canada is reassessing its future air power strategy and reviewing its previously announced plan to acquire 88 Lockheed Martin F-35 stealth fighters. Growing political tensions with the United States, combined with concerns about costs, operational flexibility, and long-term strategic independence, have fueled discussions about whether Canada should diversify its fighter fleet rather than rely exclusively on a single aircraft type.
Speaking after a meeting with Japanese Defense Minister Shinjiro Koizumi, McGuinty described GCAP as a promising initiative and confirmed that he had discussed the project with his counterpart.
“We are interested in learning more about it. I’ll take it back to my team and see what it looks like,” McGuinty said, according to Reuters.
While Canada has not formally expressed an intention to join the program, the comments represent the clearest indication yet that Ottawa is actively evaluating participation in GCAP. The development also suggests that Canadian defense planners are examining options that extend beyond the United States as they consider the future composition of the Royal Canadian Air Force (RCAF).
Canada’s fighter replacement effort has been one of the most prolonged and politically contentious defense procurement programs in the country’s history. After years of debate, the Liberal government announced in 2023 that it would purchase 88 F-35A fighters, appearing to bring closure to a process that had stretched across multiple governments and defense reviews.
However, circumstances have changed considerably since then.
Relations between Ottawa and Washington have experienced periods of strain, driven by trade disputes and broader political disagreements. Against that backdrop, Prime Minister Mark Carney’s government launched a review of the F-35 acquisition shortly after taking office in 2025.
The review has prompted renewed discussion of a so-called “split-buy” strategy, under which Canada would procure a combination of aircraft types rather than relying entirely on the F-35.
Such an approach would preserve Canada’s commitment to the F-35 program while providing an alternative source of combat capability and potentially reducing dependence on a single supplier. It would also align Canada with several other countries that operate mixed fighter fleets to meet diverse mission requirements.
Until recently, the Saab Gripen E had emerged as the most frequently discussed alternative aircraft in such a scenario. Sweden has made an aggressive effort to promote the Gripen to Canada, emphasizing opportunities for domestic industrial participation. Saab previously offered to build the aircraft in Canada as part of its campaign during the fighter competition ultimately won by Lockheed Martin.
The Swedish company has continued strengthening ties with Ottawa and is also viewed as a leading contender to provide Canada’s future airborne early warning and control capability through its GlobalEye platform.
Yet Canada’s apparent interest in GCAP introduces an entirely different possibility—one centered not on a current-generation aircraft but on a future sixth-generation combat system.
Although McGuinty’s comments represent the first public acknowledgment of Canadian interest in GCAP at a senior level, reports earlier this year suggested discussions had already begun behind closed doors.
According to Japanese media reports, Canadian and Japanese officials explored the possibility of Canada joining the program as an observer. Such an arrangement would allow Ottawa to gain access to information about the project, monitor development progress, and potentially position itself for deeper involvement later.
Observer status would not necessarily commit Canada to purchasing the aircraft. However, it would provide valuable insight into a program that could shape allied air power well into the second half of the century.
Support for broader international participation has also emerged from within the existing GCAP partnership.
Italian Defense Minister Guido Crosetto recently suggested that additional countries could eventually become involved in the initiative.
“We would be completely willing, because the more there are, the greater the chances of creating something and bringing down costs,” Crosetto said.
He specifically identified Canada as the country showing the strongest current interest and indicated that Italy would welcome Ottawa joining as an observer.
Such comments reflect a broader reality facing advanced fighter programs: the enormous costs associated with developing next-generation combat aircraft increasingly encourage international collaboration.
The Global Combat Air Program was formally established by the United Kingdom, Italy, and Japan to develop a sixth-generation fighter aircraft and associated combat systems. The centerpiece of the project is the Tempest, a highly advanced crewed fighter intended to succeed aircraft such as the Eurofighter Typhoon and complement existing fleets of F-35s.
Unlike many previous fighter projects, Tempest is being designed from the outset as part of a broader combat ecosystem that will include advanced sensors, networking capabilities, artificial intelligence applications, and potentially autonomous collaborative aircraft.
One of the most significant aspects of the program is its emphasis on range and payload.
Officials associated with GCAP have suggested that the aircraft could carry roughly twice the payload of an F-35A while possessing exceptional endurance. Some estimates indicate that the fighter could potentially fly across the Atlantic Ocean without aerial refueling thanks to its large internal fuel capacity.
These characteristics have been driven largely by anticipated operational requirements in the Indo-Pacific region, where vast distances pose significant challenges for military aircraft.
However, those same attributes could prove highly valuable for Canada.
Canada faces one of the world’s most demanding air defense environments. Its territory spans nearly 10 million square kilometers, including vast Arctic regions that are becoming increasingly important from a strategic perspective.
Growing military activity by both Russia and China has heightened concerns about Arctic security, prompting Canadian defense planners to examine how future fighter aircraft will operate across enormous distances and often in harsh conditions.
The Tempest’s anticipated combination of long range, large payload capacity, and advanced sensors appears particularly well suited to these challenges.
The commander of the Royal Canadian Air Force, Lieutenant-General Jamie Speiser-Blanchet, has previously highlighted the evolving threat environment facing Western militaries.
“Both China and Russia have fifth-generation fighter aircraft and fifth-generation missiles that are able to go at much greater speeds and with much more that are holding Western allies at risk at this moment in time,” he said.
In addition to its range advantages, Tempest is expected to employ larger and longer-range air-to-air missiles than those currently fielded by the existing GCAP partners. Such capabilities could be valuable in protecting Canada’s northern approaches and supporting NATO operations abroad.
For a country seeking to address future threats while maintaining sovereignty across vast territories, the aircraft’s design philosophy aligns closely with many Canadian requirements.
Despite growing interest in alternative options, Canada remains deeply invested in the F-35 program.
The country has already committed to purchasing an initial batch of 16 F-35A aircraft to begin replacing its aging CF-18 Hornet fleet. Four aircraft have reportedly been paid for in full, while components for eight additional jets have already been acquired.
The first Canadian F-35s are expected to arrive for pilot training at Luke Air Force Base in Arizona.
Canadian industry also participates extensively in the Joint Strike Fighter program, generating economic benefits through manufacturing contracts and supply-chain involvement.
Nevertheless, concerns regarding cost have become increasingly prominent.
When Canada announced plans to acquire 88 F-35s, the projected acquisition cost was estimated at approximately $19 billion. More recent figures have increased to nearly $27.7 billion, excluding weapons, infrastructure, and other associated expenses.
These escalating costs have strengthened arguments in favor of exploring alternative procurement approaches.
Former Defense Minister Bill Blair previously argued that a mixed fleet could provide greater operational flexibility.
“We need to have a whole wide range of capability sets to deal with all the eventualities that we could face,” Blair said while discussing the merits of maintaining different types of aircraft for different missions.
Supporters of a split-buy strategy contend that not every task requires the unique stealth capabilities of the F-35. Some missions, particularly long-duration sovereignty patrols or routine air policing operations, could potentially be performed more economically by other aircraft.
Despite its potential advantages, acquiring Tempest would present major challenges.
Perhaps the most significant is timing.
GCAP partners currently aim to introduce the aircraft around 2035, although many analysts regard that schedule as highly ambitious given the complexity of developing a sixth-generation fighter. Canada, as a potential future participant rather than a founding member, would likely receive aircraft later than the United Kingdom, Italy, and Japan.
This would create a capability gap that would need to be addressed.
To bridge that period, Canada would almost certainly need to acquire additional F-35s while continuing efforts to keep portions of its aging CF-18 fleet operational for longer than originally planned.
The RCAF currently operates approximately 75 upgraded CF-18A/B aircraft and has supplemented the fleet with former Royal Australian Air Force Hornets. However, maintaining these aircraft is becoming increasingly difficult as the global user base shrinks and support costs rise.
Extending their service lives indefinitely is not considered a realistic option.
A future combination of F-35s and Tempests would ultimately create a high-low force structure similar to that envisioned by the United Kingdom, Italy, and Japan. All three countries plan to operate both aircraft types, using the F-35 for certain missions while relying on Tempest for others requiring greater range, payload, or future growth potential.
Even if Canada decides to pursue deeper involvement in GCAP, significant questions remain about what role it could realistically play.
The program is already well underway, with national requirements largely established and major work-share agreements distributed among the founding partners.
This limits opportunities for new participants to influence design decisions or secure major industrial responsibilities.
Similar concerns have been raised regarding other countries that have expressed interest in the project, including India and Saudi Arabia. Poland has also reportedly explored the possibility of acquiring the aircraft in the future.
Given the maturity of current arrangements, Canada may find that purchasing the aircraft as a customer rather than a development partner represents the most practical path.
Nonetheless, Ottawa’s defense relationship with the United Kingdom could provide a useful foundation for future cooperation.
The two countries are already collaborating on major naval projects, including Canada’s future River-class Canadian Surface Combatants, which are derived from the Type 26 frigate design developed for the Royal Navy.
Such existing partnerships could facilitate discussions about future combat aviation cooperation.
Canada’s exploration of GCAP ultimately reflects broader strategic considerations that extend beyond aircraft performance alone.
The country remains closely integrated with the United States through NORAD, NATO, and numerous defense-industrial arrangements. Yet recent political tensions have prompted policymakers to examine ways of diversifying defense partnerships and reducing dependence on any single supplier.
Interest in GCAP appears to fit within that larger context.
At the same time, the project itself faces considerable uncertainty. Developing a stealthy sixth-generation fighter is among the most technologically demanding and expensive endeavors any nation can undertake. Technical challenges, budget pressures, and political changes could all affect the program’s trajectory in the years ahead.
BAE Systems is currently constructing a demonstrator aircraft, with a first flight planned by the end of 2027. That milestone will provide a clearer indication of the program’s progress and technological maturity.
For now, Canada’s interest remains exploratory rather than definitive.
Yet McGuinty’s comments underscore an important reality: Ottawa is no longer looking exclusively at today’s fighter options. Instead, Canadian officials are examining how future technologies, strategic partnerships, and evolving security challenges could shape the country’s air force for decades to come.
Whether that ultimately leads to observer status, a future Tempest purchase, or merely a better understanding of the program remains uncertain. What is clear, however, is that Canada’s fighter replacement saga is far from over, and the emergence of GCAP has added a significant new dimension to one of the country’s most consequential defense decisions.
