Canada has been holding "high level" talks with its southern neighbor about joining US President Donald Trump's proposed "Golden Dome" missile defense system.

President Donald Trump’s plan in launching his Golden Dome missile defense shield. This plan is modeled on Israel’s proven successful “Iron Dome” homeland defense network. This robust, complex multilayered system is one of the many factors that strengthen North American security.

The president would have to rely on his “51st state” to track Chinese and Russian missiles that could come at the U.S. from over the horizon.