Trump Unveils $175 Billion Golden Dome missile defence plan

On 20 May President Donald Trump announced the selection of a design for the $175 billion Golden Dome missile defence shield, a cornerstone of his administration’s military strategy to counter threats from adversaries like China and Russia.

Speaking at a White House press conference, Trump named U.S. Space Force General Michael Guetlein as the lead program manager for the ambitious project, which aims to create a vast network of satellites to detect, track, and intercept incoming missiles. The announcement, made alongside Defense Secretary Pete Hegseth, marks a significant step toward realising a system Trump claims will “protect our homeland” and be operational by the end of his term in January 2029.

The Golden Dome vision

The Golden Dome, first ordered by Trump in January 2025, is inspired by Israel’s Iron Dome but is far more expansive, incorporating hundreds of satellites and ground-based systems to counter advanced threats, including ballistic, hypersonic, and cruise missiles. Trump highlighted the project’s economic benefits, noting that states like Alaska, Florida, Georgia, and Indiana would see significant involvement, with early systems leveraging existing production lines from defence giants like L3Harris Technologies, Lockheed Martin, and RTX Corp. The Congressional Budget Office, however, estimates that the space-based interceptors alone could cost up to $542 billion over two decades, far exceeding Trump’s $175 billion figure.

General Michael Guetlein, the vice chief of space operations, brings extensive experience in missile defence systems and procurement to the role. Described as a competent leader within the Pentagon, Guetlein will oversee a project that includes a constellation of surveillance satellites and a separate fleet of attack satellites designed to neutralise missiles shortly after launch. The announcement also confirmed Canada’s interest in joining the initiative, with Prime Minister Mark Carney’s office noting discussions on a new security and economic partnership.

Israel’s Iron Dome: a model and its limits

The Golden Dome draws inspiration from Israel’s Iron Dome, a land-based missile defence system operational since 2011, designed to intercept short-range rockets and artillery shells. Developed with significant U.S. funding, Iron Dome uses radar, computers, and interceptor missiles to achieve a 75-95% success rate against threats from groups like Hamas and Hezbollah. However, it struggled during Hamas’ October 2023 attack, overwhelmed by a massive barrage of rockets, and is ineffective against longer-range ballistic missiles. Israel supplements Iron Dome with systems like David’s Sling and Arrow, which target mid- and long-range threats, and has deployed U.S.-provided THAAD systems to counter ballistic missiles, though these have shown mixed results against advanced threats, such as those from Yemen.

Israel’s layered defence approach has made it a global leader in missile interception, but its systems are tailored to a small geographic area and specific threats. In contrast, the Golden Dome aims to protect the entire U.S. continent, requiring unprecedented scale and technological complexity to address sophisticated missiles from global powers like China and Russia, whose hypersonic and nuclear capabilities far exceed the threats Israel faces.

Europe’s growing vulnerability to Russian missiles

The European Union, increasingly exposed to Russian ballistic missile threats, lacks a comparable integrated defence system. Russia’s arsenal, including Iskander missiles and hypersonic weapons like the Kinzhal, poses a growing risk, particularly to Eastern European nations like Poland and the Baltic states. The EU relies on fragmented national defences, such as NATO’s Aegis Ashore sites in Poland and Romania, and Patriot systems in some member states.

However, these lack the cohesion and scale of Israel’s multilayered approach or the proposed Golden Dome. Recent Russian sabre-rattling, including nuclear drills in 2024, has heightened calls for a unified EU missile defence framework, but political divisions and budget constraints have stalled progress. Unlike the U.S., which can centralize funding and decision-making, the EU’s 27 member states struggle to align on defence priorities, leaving the bloc vulnerable to Russia’s advanced missile capabilities.

Challenges and controversies

The Golden Dome faces significant hurdles, including funding uncertainty and political scrutiny. Republican lawmakers have proposed an initial $25 billion as part of a $150 billion defence package, but the funding is tied to a contentious reconciliation bill facing opposition in Congress. Democratic lawmakers, led by Senator Elizabeth Warren, have raised concerns about the procurement process, particularly the involvement of Trump ally Elon Musk’s SpaceX, alongside Palantir and Anduril, as frontrunners for key contracts. Critics argue that SpaceX’s proposed “subscription service” model could bypass traditional Pentagon oversight, potentially prioritizing corporate interests over national security.

While Trump asserts the system will be operational within three years, experts question the feasibility of this timeline, citing the complexity of deploying space-based weapons—a capability the U.S. has never fully realized. The Pentagon has warned that countering advanced Chinese and Russian missiles requires significant upgrades, and the Golden Dome’s reliance on untested technologies adds further risk.

Sources: Reuters, US News, The Guardian, Jerusalem Post, edited y g.g.

Caption: US President Donald J Trump announces he has selected the path forward for his ambitious Golden Dome missile defense shield, in the Oval Office of the White House in Washington, DC, USA, 20 May 2025. [EPA-EFE/CHRIS KLEPONIS / POOL]