US President Donald Trump’s newly unveiled $175 billion “Golden Dome” missile defense initiative is facing mounting criticism from defense analysts, scientists, and international rivals. The ambitious plan, aimed at deploying a space-based shield capable of intercepting intercontinental ballistic missiles (ICBMs) by 2029, is being dismissed by many as technically unfeasible and geopolitically risky.
Announced last month, the Golden Dome is modeled loosely on Israel’s Iron Dome, but with far grander ambitions—designed to detect and destroy high-speed ICBMs launched from anywhere in the world by adversaries such as China, Russia, or North Korea.
“Golden Dome will be capable of intercepting missiles even if launched from the other side of the world,” Trump proclaimed during the announcement, promising full deployment by the end of a potential second term.
Experts Doubt Technical Feasibility
Defense experts have expressed serious doubts about the project’s viability, pointing to the enormous technical and logistical hurdles involved.
“I’m not holding my breath,” said Thomas Withington, an associate fellow at the Royal United Services Institute (RUSI). “The challenges involved are so significant that achieving this within the next few years is highly improbable.”
The Golden Dome would rely on space-based detection and interception, specifically targeting missiles during their “boost phase”—the brief window immediately after launch when the missile is most visible from space. This approach, while theoretically promising, would require massive satellite coverage.
“To ensure one interceptor is always within range of a missile in boost phase, around 950 interceptors would need to be in constant orbit,” said Todd Harrison of the American Enterprise Institute. “To counter a modest salvo of 10 missiles, you’d need nearly 9,500 interceptors.”
The US Congressional Budget Office has estimated that even a limited system capable of stopping just one or two missiles could cost anywhere between $161 billion and $542 billion.
Futuristic Tech, Current Limitations
The proposal also features exotic elements such as space-based lasers to neutralize missiles without generating orbital debris. But many in the defense industry say such technology remains out of reach.
“Even the United States doesn’t yet have the capability for space-based lasers,” said a European defense contractor on condition of anonymity. “It’s a fantastic way to pump funds into the defense sector, but not necessarily a project headed for deployment.”
Geopolitical Fallout and Risk of Arms Race
Beyond technical doubts, the proposal is also drawing concern for its strategic implications. Analysts warn that a functioning space shield could upset the doctrine of mutually assured destruction (MAD), the fragile equilibrium that has deterred nuclear conflict for decades.
“If the US is seen to be building a system that might one day neutralize a retaliatory strike, it could prompt rivals to increase their nuclear arsenals or develop ways to overwhelm the system,” said Julia Cournoyer, a research associate at Chatham House.
China and Russia have strongly condemned the Golden Dome, calling it “deeply destabilizing,” while North Korea labeled it “very dangerous.” The plan has also revived memories of Ronald Reagan’s 1980s Strategic Defense Initiative—nicknamed “Star Wars”—which envisioned similar satellite-based interceptors but was ultimately shelved due to cost and feasibility.
Strategic Leverage?
Some observers believe the Golden Dome may be more about political leverage than real-world defense capabilities.
“It’s possible the Trump administration is using this proposal as a bargaining chip—to pressure China and Russia into returning to the arms control table or negotiating reductions,” said RUSI’s Withington.
As the debate unfolds, the Golden Dome remains a symbol of Trump’s defense vision: bold, controversial, and heavily contested—both in the corridors of power and on the global stage.
