U.S. President Donald Trump announced in January upon taking office that he would develop the 'Golden Dome' missile defense system and confirmed on May 20 that a design plan had been selected. Recent reports indicate that Canada is also interested in joining this initiative, and discussions between the two governments are underway.

According to the BBC, Prime Minister Justin Trudeau's office stated that there are 'active discussions' between the U.S. and Canada on security issues, including existing and new plans, such as the Golden Dome. Trump revealed that Canada has expressed interest in the Golden Dome during his announcement on May 20, stating, 'We will talk to them; they want protection, so as always, we will help Canada.'

Details on how Canada will participate in the Golden Dome system and the amount it is willing to invest remain unclear. Canada is still in trade negotiations with the U.S. Trudeau's spokesperson emphasized that the Canadian people have given strong authority to the Prime Minister to negotiate a comprehensive new security and economic relationship with the U.S.

Furthermore, she pointed out that it is premature to predict how much Canada will invest in the Golden Dome system or what benefits it will bring. Shashank Joshi, editor of the defense section of The Economist, mentioned that one operational possibility for the Golden Dome might involve thousands of satellites detecting and tracking missiles, using interceptors in orbit to intercept and destroy targets at the moment of launch. It is noted that the U.S. military may take the Golden Dome plan seriously, but completing it during Trump’s term may be challenging due to its high budget, which could consume a significant portion of the U.S. defense budget.

The selected plan indicates that the Golden Dome is expected to cost $175 billion (approximately NT$5.278 trillion).