In May, President Donald Trump unveiled what he called the Golden Dome–a $175 billion missile defense initiative that, in his words, would “shield every inch of North America” from Chinese and Russian attacks.

The announcement, bold even by Trumpian standards, was meant to project American technological dominance in the face of growing military threats.

Yet, while the Golden Dome exists largely on PowerPoint slides, Beijing claims it has already built and deployed a version of what Washington is still only imagining.

According to the South China Morning Post, China’s “distributed early warning detection big data platform” can simultaneously track up to a thousand incoming missiles launched from anywhere on Earth.

Developed by the Nanjing Research Institute of Electronics Technology, the country’s largest defense electronics lab, and now reportedly integrated into the People’s Liberation Army’s operational systems, the platform marks a major leap in Chinese military computing.

Researchers involved in the project attribute the breakthrough to advances in data processing that allow the system to manage global-scale threats without the need to rebuild existing infrastructure.

“Unlike the U.S. system that leans heavily on artificial intelligence and hardware upgrades,” said Li Xudong, the project’s lead engineer, “our model integrates data across domains seamlessly.”

In essence, while Washington is still debating budget lines, Beijing may already be running a functioning planetary shield.

Trump’s Golden Dome, inspired by Israel’s Iron Dome but exponentially larger, envisions a multilayered interception network capable of neutralizing missiles at every phase–from launch to re-entry, and even those launched from orbit.

The initiative stems from mounting concern over Russia and China’s development of hypersonic weapons–nuclear-capable missiles that travel beyond Mach 5 and evade conventional radar until moments before impact.

Adding to the complexity is a new class of weapon the Pentagon now calls orbital missiles, or FOBS (fractional orbital bombardment systems)--missiles that circle Earth before releasing nuclear payloads.

These, too, fall under the Golden Dome’s protection mandate.

Plans stuck in paper

To lead this massive effort, Trump has tapped General Michael Guetlein, the current vice chief of space operations.

Yet for all the grand rhetoric about American resurgence, the reality is sobering: the United States is still sketching out its future defense system, while China appears to have quietly stepped into it.

Besides, for all its theatrical confidence, Donald Trump’s so-called Golden Dome missile defense project may be less a feat of American innovation than an echo of a bygone fantasy.

The Pentagon, despite the former president’s boasts of a $175 billion technological shield to guard North America from Chinese and Russian missiles, admits it still doesn’t know how the system will actually work.

At a defense industry event in July, General Guetlein summed up the confusion with startling honesty. “Everyone who’s telling you they think they know, do not know, including me,” he said.

The U.S. Department of Defense has identified the biggest roadblock: data-flow management.

To put it plainly, no one has yet figured out how to process the ocean of information required to detect, track, and intercept missiles launched simultaneously from multiple continents–or even from orbit.

Without that, the Golden Dome remains just an idea, not a defense system.

Trump’s grand project is the most audacious since Ronald Reagan’s Strategic Defense Initiative (SDI) of the 1980s, a program mocked as “Star Wars” for its sci-fi aspirations to build space-based laser shields.

Like Reagan’s vision, Trump’s plan promises to make America untouchable. But history has shown how quickly such dreams collapse under the weight of physics and politics.

Analysts have already begun to sound alarms. “I think that’s unrealistic,” said Stacie Pettyjohn, a defense expert at the Center for a New American Security, in an interview with the BBC.

“Every one of those steps has its own risks, costs, and schedules. And going fast is going to add more cost and risk… you are likely to produce something that isn’t going to be as thoroughly evaluated.”

Budgetary constraints

The numbers alone tell a sobering story.

An independent assessment by the U.S. Congressional Budget Office now pegs the cost of Donald Trump’s Golden Dome missile defense project at nearly $542 billion–more than triple the figure the former president announced with characteristic bravado earlier this year.

Beyond the staggering expense, critics warn that the program risks triggering a dangerous new era of military escalation–one that extends not just across borders, but into orbit itself.

At home, skepticism is growing about the practicality of building such a system. Abroad, the unease is sharper: allies fear the militarization of space, while adversaries see justification to accelerate their own deterrence programs.

Trump’s plan also relies heavily on artificial intelligence to process the torrents of data required to detect and intercept hypersonic and orbital missiles. Yet that reliance has raised deep concerns within the Pentagon over how to safeguard sensitive information and maintain operational control.

In contrast, Beijing appears to have sidestepped this challenge altogether. Its recently deployed “distributed early warning detection” system, developed by the Nanjing Research Institute of Electronics Technology, uses rapid data processing rather than AI to manage missile tracking in real time–an approach that seems both faster and more secure.

The implications are profound. China’s early deployment of a functional missile shield, one reportedly capable of tracking a thousand incoming projectiles simultaneously, signals not just a technological breakthrough but a strategic shift.

Trump’s proposal to place interceptors in orbit meanwhile reflects Washington’s growing anxiety that both China and Russia may already possess satellites capable of disabling American space assets.

The Pentagon insists such measures are necessary to counter the hypersonic and ballistic threats that now move faster and lower than traditional radars can track.

But as U.S. defense analyst Jacob Mezey observed in a report for the Atlantic Council, China’s pursuit of a comprehensive missile defense system serves a deeper purpose.

It blends security imperatives with political signaling, building a launch-on-warning capability that enhances strategic resilience and complicates adversary planning. In other words, China is building not just a shield—but leverage.

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Md Sazzad Amin is Bangla Outlook’s Chief Geopolitical Columnist