The Canada-Ukraine 100-Year Cooperation Agreement and Expanded Defense Support: A Geopolitical Risk Analysis from the Perspective of Middle Power Solidarity

Executive Summary

Two days after enacting retaliatory tariffs against the United States on September 8, Canada signed a 100-year agreement with Ukraine and announced C$350 million in support for interceptor missiles. The agreement, which consists of a non-binding industrial partnership and a memorandum of understanding, is not yet a source of immediate business opportunities. However, the fact that the interceptor missile support will be implemented through the U.S. Jumpstart Mechanism shows that Canada's independent path is not a complete break with the United States, but rather a selective departure limited to the trade domain. South Korean companies should not mistake Canada as an alternative axis to the United States. Instead, they should prioritize exploring ways to integrate into the supply chain for Ukrainian air defense subsystems, which are being procured separately by Canada, the EU, and the United Kingdom. Given the Canadian defense procurement system's principle of prioritizing domestic companies, the key will be to continuously monitor whether the agreement translates into actual procurement and production policies over the next 12 to 18 months.

I. Situational Analysis

The Canada-Ukraine 100-Year Cooperation Agreement and Expanded Defense Support: A Situational Analysis

1. Background and Developments

The relationship between Canada and Ukraine has long rested on a special foundation, even before this agreement. Canada is home to one of the world's largest Ukrainian diasporas. The provinces of Alberta and Manitoba have well-established Ukrainian-Canadian communities dating back to the late 19th century. The choice of Calgary, Alberta, for the signing ceremony is not unrelated to this regional symbolism [4].

Canada's policy toward Ukraine developed in the second half of 2025, coinciding with the intensification of its trade conflict with the United States. The Trump administration's tariffs on Canada continuously expanded, starting from justifications related to fentanyl and immigration to issues concerning steel, automobiles, wildfire smoke, and forced labor [3]. After negotiations finally broke down on August 21, Canada enacted $20 billion in retaliatory tariffs on September 8 [3][16][18]. At this point, Prime Minister Carney publicly announced the start of economic and security negotiations with the EU [3][16]. In response, the U.S. Department of Justice took measures to suspend antitrust cooperation with Canada [15].

The issue of support for Ukraine has not been separate from this trend of diversification. Prime Minister Carney is the figure who popularized the term 'Middle Powers' earlier this year. This is a concept referring to major democratic countries, including Canada, that previously relied on the United States [14]. In Europe, on Ukraine's Independence Day on August 24, the United Kingdom and France had already approved the transfer of Storm Shadow/SCALP missile blueprints, and the EU had simultaneously approved a €6.1 billion defense loan [6]. Canada's latest action is part of this trend of expanding support in succession among Western allies.

2. Current Situation

President Zelenskyy visited Canada on September 10 for a summit with Prime Minister Carney. There, the two countries signed a 100-year partnership declaration to deepen cooperation in defense, energy, technology, trade, and reconstruction [8]. Prime Minister Carney stated, "This relationship has prospered for over 100 years, and it will prosper for another 100 years after this war is over" [4]. The agreement itself is structured as a non-binding industrial partnership and a memorandum of understanding [4].

On the same day in Calgary, Prime Minister Carney announced C$350 million—approximately US$253-254 million—in support for interceptor missiles for Ukraine [7][9][10]. These funds will be disbursed through the U.S. Jumpstart Mechanism [7][11]. Prime Minister Carney explained, "Ukraine's air defenses are vital as Russia expands its brutal air war, indiscriminately targeting civilians" [10]. Ukraine's stockpiles of U.S.-made Patriot interceptor missiles have fallen to dangerous levels amid intensified Russian ballistic missile attacks [10].

This support is also directly linked to the need to defend Ukraine's energy infrastructure ahead of the winter season. Key items on President Zelenskyy's visit agenda included strengthening air defenses and preparing energy facilities for winter [9]. Estonian public broadcaster ERR also reported the support as a multi-hundred-million-dollar package covering both air defense and energy infrastructure [11].

3. Key Actors and Positions

The Canadian Government (Prime Minister Mark Carney)is using support for Ukraine as a tool for independent diplomacy amid its trade conflict with the United States. While utilizing the U.S.-led Jumpstart Mechanism, Prime Minister Carney has opted for a model where Canada takes the lead in funding and political announcements [7]. This is an extension of Canada's ongoing diversification strategy, which includes deepening relations with the EU and resuming defense talks with China [3].

The Ukrainian Government (President Volodymyr Zelenskyy)faces an urgent security need due to a shortage of Patriot interceptor missiles. For President Zelenskyy, the visit to Canada served the dual purpose of confirming his political support base through the Ukrainian diaspora and, on a practical level, expanding the roster of supporting nations beyond the EU and the UK to include Canada [8][9].

The United States (Trump Administration)holds a dual position on this issue. While the Jumpstart Mechanism itself is a U.S.-designed framework, conflicts with Canada persist, including the suspension of cooperation on tariffs and antitrust matters [15][18]. This creates a dynamic of cooperation on Ukraine support coexisting with confrontation in the bilateral trade relationship.

The EU and the United Kingdomare expanding their own separate support packages around the same time. The UK announced a £100 million air defense package on September 8 [12], and the EU is considering using part of its €90 billion support loan to fund Ukraine's requested purchase of PAC-3 Patriot systems [17]. At a Ramstein-format meeting, Ukraine's Minister of Defence announced that Kyiv is preparing a contract for approximately 1,000 Patriot missiles, funded by partner contributions and the EU loan [13].

4. Key Issues

The first issue is whether Canada's conflict with the U.S. and its expanded support for Ukraine are separate matters or part of a single strategic realignment. Considering Prime Minister Carney's 'Middle Powers' discourse alongside the trend of strengthening relations with the EU and China, there is room to view the Ukraine support as being situated within a broader framework of reducing dependence on the U.S., going beyond the deterrence of Russia [3][14].

The second issue is the effectiveness of the Jumpstart Mechanism. The structure, in which Canada utilizes a funding framework designed by the U.S., shows that multilateral security cooperation channels are being maintained despite bilateral conflicts with Washington. However, it is uncertain whether this mechanism will remain viable if U.S.-Canada relations deteriorate further.

The third issue is the substantive binding power of the 100-year agreement. As it is a declarative document with no legal force, the extent to which actual contracts in the defense and energy sectors materialize will be the measure of its effectiveness [4].

II. In-Depth Analysis

The Canada-Ukraine 100-Year Cooperation Agreement and Expanded Defense Support: An In-Depth Analysis

1. Analysis of Root Causes

The ostensible reason for this agreement is to support Ukraine. However, the timing and context of the announcement suggest that Canada's domestic political and diplomatic calculations played a larger role. Prime Minister Carney enacted retaliatory tariffs against the U.S. on September 8 [16][18]. Two days later, he signed the 100-year agreement with Ukraine [8]. This sequence is no coincidence. It was a parallel move to broaden security partnerships at a time of escalating trade conflict with the United States.

Prime Minister Carney's personal diplomatic agenda is another root cause. He is the figure who popularized the concept of 'Middle Powers' earlier this year [14]. This term embodies the idea that countries like Canada, which previously relied heavily on the U.S. for security and economic matters, must transition into independent actors. Expanding support for Ukraine is the first instance of this concept being implemented as actual policy. For Prime Minister Carney, Ukraine is the most justifiable stage on which to demonstrate the narrative of reducing dependence on the U.S. to the international community.

Ukraine's own needs are also an indispensable part of the root cause. Ukraine's stockpiles of U.S.-made Patriot interceptor missiles had fallen to dangerous levels [10]. It was a situation where gaps in air defense, caused by intensified Russian ballistic missile attacks, were leading directly to civilian casualties. The fact that President Zelenskyy visited Canada in person to secure the deal reflects this urgency [9]. From Canada's perspective, meeting this demand aligned perfectly with its own diplomatic objectives.

2. Structural Context

In the political structure, Canada has one of the world's largest Ukrainian diaspora communities, centered in Alberta and Manitoba. The choice of Calgary for the signing ceremony is not unrelated to this regional base [4]. Domestically, support for Ukraine is an issue that easily garners bipartisan support. Unlike controversial issues such as responding to U.S. tariffs, supporting Ukraine is a card the Carney government can play without significant political risk.

In the economic structure, this agreement is intertwined with Canada's strategy to reduce its trade dependence on the United States. After negotiations broke down on August 21, Canada publicly announced the start of economic and security negotiations with the EU [3][16]. Around the same time, it also resumed defense talks with China for the first time in eight years [3]. The 100-year agreement with Ukraine should be seen as the third pillar of this diversification axis. The very structure of the agreement, encompassing defense, energy, technology, and trade, shows that Canada is attempting to institutionalize partnerships beyond the U.S. market [4][8].

In the security structure, Canada's dual position of leveraging a U.S. support mechanism becomes apparent. This interceptor missile support is being implemented through the U.S. Jumpstart Mechanism [7][11]. In other words, while confronting the U.S. on trade, Canada is using the very framework designed by the U.S. as its channel for implementing security assistance. This suggests that Canada's 'independent path' is not a complete break with the United States, but rather a selective departure in specific domains.

3. Comparison with Historical Precedents and Similar Cases

A comparison with the actions taken by the UK and France on August 24 clarifies the nature of Canada's case. The UK and France transferred the Storm Shadow/SCALP missile blueprints themselves, enabling local production in Ukraine [6]. The EU also approved a €6.1 billion defense loan [6]. This was an instance of a structural shift in the method of support, from supplying finished products to transferring production capabilities. Canada's recent support, in contrast, is limited to funding the purchase of finished interceptor missiles [7][9][10]. In terms of the depth of support, Canada has not gone a step further than Europe.

The timing nearly coincides with the UK's announcement of a £100 million air defense package on September 8 [12]. Both cases share the common feature of being measures to prepare for Russian attacks on energy infrastructure during the winter. However, they differ in that the UK's action is an extension of the existing Western support framework, while Canada's move combines its support with the distinct political symbolism of a 100-year agreement.

It also contrasts with the EU's discussions on supporting PAC-3 Patriot procurement. In early September, at Ukraine's request, the EU considered using part of its €90 billion loan for the first time to fund PAC-3 purchases [17]. This represents an institutionalized allocation of resources at the multilateral level. Canada's support, on the other hand, takes a hybrid form, combining a bilateral agreement with a U.S. mechanism. The reason Canada prioritizes bilateral relations over multilateral channels is linked to its objective of using Ukraine support as a means to showcase its diplomatic independence.

In the history of Canada-U.S. relations, this case is not an entirely new phenomenon. Canada has previously shown a pattern of strengthening relations with third countries and multilateral organizations during periods of trade friction with the United States. However, it is unusual to include a sensitive area like security assistance in its diversification strategy, as it has this time. The way trade conflicts are spilling over into the realm of security cooperation is a defining feature of this case.

4. Key Variables Shaping Future Developments

The first variable is the trajectory of the Canada-U.S. trade conflict. Since the breakdown of negotiations on August 21, the bilateral relationship appears to have entered a prolonged state of limbo [3]. The intensity of Canada's support for Ukraine could be adjusted depending on whether this conflict escalates into a complete rupture or is partially resolved. If the U.S. responds by restricting Canada's participation in the Jumpstart Mechanism itself, Canada's entire support channel could be jeopardized.

The second variable is the legal nature of the 100-year agreement. The agreement is structured as a non-binding industrial partnership and a memorandum of understanding [4]. It is unclear whether the agreement's effectiveness would be maintained in the event of a change in government after the Carney administration. Whether this non-binding declaration leads to actual budget and procurement decisions will be the measure of its substantive meaning.

The third variable is the situation on the battlefield in Ukraine and the intensity of Russia's winter attacks on energy infrastructure. The agenda for President Zelenskyy's visit to Canada was strengthening air defenses and preparing energy facilities for winter [9]. If Russian airstrikes intensify more than expected, pressure for additional support from Western countries, including Canada, will grow. Conversely, if end-of-war negotiations advance, the pace of the agreement's practical implementation could slow.

The fourth variable is whether other middle powers will follow suit. For the 'Middle Powers' concept proposed by Prime Minister Carney to translate into an actual policy coalition, Canada's unilateral actions will not be enough. Whether the existing trend of expanded support from European nations [6] combines with Canada's latest move to evolve into a separate consultative body or coordination channel will be a test of this concept's effectiveness.