The Congressional Budget Office has estimated that deploying and operating just the space-based interceptors could cost up to $542 billion over the next two decades.

China has raised "grave" concerns over President Donald Trump's proposed "Golden Dome" anti-missile defense system, warning that it will trigger an arms race in space. "It will exacerbate the risk of turning outer space into a battlefield and starting an arms race,

The Kremlin indicated on Wednesday that President Donald Trump's "Golden Dome" missile shield plans could force the resumption in the foreseeable future of contacts between Moscow and Washington about nuclear arms control.