President Donald Trump is expected to announce the path forward and the leader of his ambitious Golden Dome missile defense shield on Tuesday, two U.S. officials said. The vice chief of space operations,

U.S. President Donald Trump has put a price tag on Canada joining his proposed Golden Dome missile defence system — and renewed his annexation threat in the process.

Trump first revealed his concept for the Golden Dome during a joint address to Congress in March, when he said that "Israel has it, other places have it, and the United States should have it too". The president was referring to Israel's "Iron Dome" system, which the country has used to intercept rockets and missiles since 2011.