On May 6, U.S. President Trump met with Canadian Prime Minister Carney at the White House. Trump announced during his inauguration in January that he aims to develop the 'Golden Dome' (Golden Dome) missile defense system, and on the 20th confirmed the design plan. Recent news indicates that Canada is also interested in joining, with both governments in discussion.

According to the BBC, Prime Minister Carney's office noted that there are 'active discussions' between Canada and the U.S. on security issues, including both existing and new plans like the Golden Dome. When Trump announced the confirmation of the design, he revealed that Canada had expressed interest in the Golden Dome. Trump stated, 'We will talk to them; they want protection, so, as always, we will help Canada.'

It is currently unclear how Canada will join this system and how much funding they are willing to commit. Canada is still engaged in tariff negotiations with the U.S. Carney's spokesperson, Audrey Champoux, stated, 'Canadians have given the Prime Minister a strong mandate to negotiate a comprehensive new security and economic relationship with the U.S.' Champoux also mentioned that it is too early to speculate on how much Canada will invest in the Golden Dome system or how it will benefit them.

Shashank Joshi, editor of the defense section of The Economist, told the BBC that one possible operation method for the Golden Dome is to utilize thousands of satellites to detect and track missiles, then use interceptors in orbit to strike down the missiles during their launch. Joshi pointed out that while the U.S. military may take the Golden Dome project seriously, it will be difficult to complete it during Trump's term, and its high budget could consume a significant portion of the U.S. defense budget. According to Trump's chosen plan, the Golden Dome is expected to cost $175 billion (approximately 5.2787 trillion NTD).