Donald Trump said Tuesday that Canada will have to pay US$61 billion to be part of his “Golden Dome” space-based missile defence plan — but would pay nothing if it becomes part of the U.S., a message he claimed to have “told Canada” himself.

The social media post came hours after King Charles III delivered the speech from the throne in Canada’s Parliament, which particularly focused on asserting Canada’s sovereignty and included plans for bolstering national defence.