Trump offers Canada free entry into $175 billion 'Golden Dome' defence plan—But only as 51st state

US President Donald Trump has offered Canada free access to his proposed "Golden Dome" missile defence system—but only if it joins the United States as its 51st state. Otherwise, Canada would need to pay $61 billion. While talks are underway on potential collaboration, Canadian Prime Minister Mark Carney has firmly rejected any compromise on sovereignty. Trumps offer, and the high-stakes technology behind the plan, adds fresh tension to long-standing US-Canada defence ties under NORAD.