The Canadian government has confirmed it is in active talks with the United States to potentially join President Donald Trump’s ambitious “Golden Dome” missile defense program, a multi-billion-dollar initiative aimed at neutralizing next-generation aerial threats, including hypersonic weapons.
Prime Minister Mark Carney’s office said the discussions with U.S. officials are part of broader security and economic negotiations between the two countries. Audrey Champoux, a spokesperson for Carney, said the prime minister has been given a strong mandate by Canadians to pursue a new comprehensive security relationship with the U.S., which includes exploring initiatives like the Golden Dome and reinforcing existing programs such as Norad.
Trump officially unveiled the Golden Dome project earlier this week, initially estimating its cost at $25 billion. However, he later stated the full price tag would be closer to $175 billion, with Canada expected to “pay their fair share.” Independent assessments from the Congressional Budget Office suggest the system’s space-based elements alone could cost over $540 billion across two decades.
While President Trump claimed Canada had already expressed interest in the project, details of how Canada would participate or how much it would contribute remain unclear. Champoux noted that it’s too early to define Canada’s financial role or logistical involvement in the program.
Inspired by Israel’s Iron Dome, the proposed system aims to use a network of space-based sensors and interceptors capable of neutralizing threats launched from virtually anywhere on Earth. Trump claimed the system could become operational before the end of his term, though defense experts remain skeptical.
Analysts, including The Economist’s Shashank Joshi, caution that building such a vast defense shield over North America would require thousands of satellites and orbital interceptors, a task that may be technically feasible but economically and politically daunting.
The timing of Canada’s engagement comes amid tense trade and diplomatic relations with the U.S., following Trump’s recent comments suggesting Canada would fare better as a U.S. state. Those remarks, however, sparked a surge in national pride that helped deliver Carney’s Liberals a historic election victory. Talks over the Golden Dome now serve as a litmus test for the evolving partnership between the two nations.
