The suggestion that Canada might consider acquiring nuclear weapons, raised by retired general Wayne Eyre, has ignited debate in the wake of former U.S. President Donald Trump's past threats regarding Greenland. Eyre, who served as Canada's chief of the defence staff until 2023, argued that the nation should not dismiss the possibility outright as global security dynamics shift. His comments referenced Trump's controversial 2019 expression of interest in purchasing Greenland—a move interpreted by some analysts as emblematic of potential U.S. unpredictability under a future Trump administration. Eyre emphasized that Canada must contemplate "all tools available" to defend its sovereignty, especially in the Arctic, where climate change and geopolitical competition are intensifying.
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However, this proposal has met with swift rejection from both government officials and security experts. Defence Minister Bill Blair firmly dismissed the idea, reaffirming Canada's long-standing commitment to non-proliferation and its obligations under the Nuclear Non-Proliferation Treaty. Experts echoed this stance, noting that pursuing nuclear weapons would undermine Canada's diplomatic credibility, strain relations with key allies, and trigger massive financial and strategic costs without enhancing security. They argue that reinforcing conventional defence capabilities and strengthening alliances remain more practical approaches to addressing emerging threats.