President Donald Trump has called for an expansive, next-generation missile defense shield for the mainland United States, something modeled on Israel’s formidable defenses, typified by its signature Iron Dome system.

President Trump signed an executive order to build an "Iron Dome for America," modeled on Israel’s missile defense system.

When it comes to protecting U.S. territory from missiles fired by such nuclear-powered countries as Russia, China, and North Korea (which is Trump’s goal in ordering this project), something like Iron Dome would have no capability whatsoever; and