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.

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

The President gave us a clear mission: achieve Peace through Strength. We will do this in three ways — by restoring the warrior ethos, rebuilding our military, and reestablishing deterrence,” said Secretary Hegseth.