An executive order said the United States faced a “catastrophic threat” from advanced aerial weapons. But a defense system like Israel’s may not be feasible in the country, which is more than 400 times larger.

Donald Trump made the executive order to build an Iron Dome-like defence system that aims to protect US citizens and critical infrastructure across the country

President Trump issued an executive order regarding the construction of a "next-generation missile defense shield" similar to the "Iron Dome"