Here’s how some other nations have already responded to the “Golden Dome.”

North Korea on Tuesday slammed US President Donald Trump's "Golden Dome" missile shield plan as a "very dangerous" threat that could spark nuclear war in space.

The Kremlin said Wednesday that U.S. President Donald Trump’s proposed “Golden Dome” missile shield was a “sovereign matter” for the United States, softening its tone after earlier criticism that the plan could destabilize global security.