30 November 2025

Golden Dome faces challenges of size, scope and scale from every angle

Casey Laughman

A Space X Falcon 9 rocket launches from Space Launch Complex 40 at Cape Canaveral Space Force Station, Florida, Feb. 14, 2024. The rocket was launched as part of classified mission USSF-124, sending six satellites to orbit - two for the Missile Defense Agency and four for the Space Development Agency. (U.S. Space Force photo by Airman 1st Class Spencer Contreras)

The announcement of the Golden Dome missile defense system to protect the United States from missile attacks represented a major shift in defense priorities for the US military — and presents myriad challenges when trying to protect a country the size of the US.

The model is Israel’s Iron Dome, but that system covers a relatively small area and mostly protects against traditional ballistic missile attacks. Golden Dome will cover a much larger area, and must be able to counter intercontinental ballistic missiles (ICBMs), cruise missiles and hypersonic missiles. All of those requirements add complexity, engineering challenges and cost considerations.

The US has announced $175 billion to fund the program, and has placed it under the control of Space Force Gen. Michael Guetlein. Guetlein will have oversight and acquisition authority for Golden Dome, which signals a different approach than the norm, says John Plumb, former Assistant Secretary of Defense for Space Policy.

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