The U.S. Pentagon’s ambitious Golden Dome missile defense system will feature a complex four-layer architecture, including a satellite-based layer and three land-based systems, aiming to counter various missile threats by 2028. Estimated to cost $175 billion, it draws inspiration from Israel’s Iron Dome yet surpasses it in scale. The initiative faces uncertainties in its basic architecture and technical hurdles like communication latency. Highlighting a focus on intercepting missiles during their boost phase, the program seeks to integrate advanced technologies and systems, reinforcing U.S. defense capabilities amidst evolving global threats, while modular systems will allow for rapid deployment across diverse theaters.