President Donald Trump has announced a new missile defense system called the Golden Dome, aiming to place U.S. weapons in space. Speaking from the Oval Office, he said the system would intercept missiles “even if they are launched from space.” The program is expected to cost $175 billion, with $25 billion requested upfront.

The Golden Dome targets missiles at four stages: before launch, early flight, mid-course, and final approach. Pentagon planners proposed multiple cost-tiered options using satellites and interceptors. Over 20 years, space-based elements alone could cost $542 billion.

China quickly responded, warning the project could spark a space arms race. Foreign ministry spokesperson Mao Ning said it “violates the principle that the security of all countries should not be compromised.” She urged the U.S. to abandon the plan, calling it a threat to global stability.

U.S. officials argue the defense is needed due to space threats from China and Russia. “These represent new requirements for missions never accomplished before,” said General Chance Saltzman. However, the program remains in early planning stages.