Golden Dome (GD) is a U.S. missile defense system designed to protect against enemy intercontinental ballistic missiles (ICBMs).
The system aims to intercept missiles in the “boost phase”—just after launch—using a network of space-based satellites, interceptors, and possibly lasers.
Golden Dome will have four defense layers:
Space-based intercept layer using satellites.
Enhanced Ground-Based Midcourse Defense (GMD) system in California and Alaska.
Five new land-based launch sites (three in mainland U.S., one in Alaska, one in Hawaii).
Limited Area Defense for cities, combining new radars, a common launcher, and systems like the Patriot missile defense.
Iron Dome protects small areas from rockets, while GD aspires to nationwide, multi-layered missile interception.