President Donald Trump unveiled his $175 billion plan to mimic that system. The U.S. version has been dubbed the Golden Dome, in honor of Trump's favorite decorative mo

Although Trump has requested an initial $25 billion for the Golden Dome in a proposed tax bill currently advancing through Congress, the program faces significant budgetary hurdles. According to a recent estimate from the Congressional Budget Office, just the space-based elements of the program could total $542 billion over the next two decades.

President Donald Trump picked a design for his Golden Dome missile defense system and named a leader of the ambitious $175 billion defense program. The program, first ordered by Trump in January, aims to create a network of satellites, perhaps numbering in the hundreds, to detect, track and potentially intercept incoming missiles.