https://techcrunch.com/2019/01/17/star-wars-returns-trump-calls-for-space-based-missile-defense/

The President has announced that the Defense Department will pursue a space-based missile defense system reminiscent of the one proposed by Reagan in 1983. As with Reagan’s ultimately abortive effort, the technology doesn’t actually exist yet and may not for years to come — but it certainly holds more promise now than 30 years ago.

In a speech at the Pentagon reported by the Associated Press, Trump explained that a new missile defense system would “detect and destroy any missile launched against the United States anywhere, any time, any place.”