Trump’s Push to Resume U.S. Nuclear Weapons Testing Sparks Global Alarm
“If they’re going to test, I guess we have to test.” — Donald Trump, October 2025
The Return of the Nuclear Test Era
For the first time in over 30 years, a sitting U.S. president has announced plans to resume nuclear weapons testing a move experts warn could destabilize global security and reverse decades of nuclear restraint. President Donald Trump, speaking aboard Air Force One on October 30, 2025, told reporters:
“We’ve halted many years ago, but with others doing testing I think it’s appropriate to do so.”
His comments came just days after Russia tested both a nuclear-powered cruise missile and a nuclear-powered underwater drone, weapons widely seen as “doomsday systems” designed to intimidate adversaries and bypass missile defenses. Trump’s statement, while framed as a defensive measure, immediately drew condemnation from nuclear experts, arms-control advocates, and several U.S. allies. They say restarting live nuclear detonations would erode international treaties, provoke reciprocal tests from adversaries, and risk igniting a new global arms race.
Where and How the U.S. Would Test
If nuclear testing resumes, it would take place at the Nevada National Security Site, roughly 60 miles northwest of Las Vegas. Once ground zero for the atomic age, the 1,300-square-mile site hosted 928 nuclear detonations between 1951 and 1992. Modern tests would occur deep underground, in sealed shafts or tunnels designed to contain radiation. But “contained” doesn’t mean risk-free. Corey Hinderstein, former deputy administrator of the National Nuclear Security Administration (NNSA), told NPR:
“In the past, some radioactive fallout leaked from test shafts. And newer Las Vegas high-rises including the Stratosphere and the Trump Hotel aren’t designed for significant seismic activity.”
The last full-scale U.S. test occurred in September 1992. Since then, America’s arsenal has been maintained through supercomputer simulations and subcritical experiments, which use conventional explosives and plutonium without triggering a nuclear chain reaction. According to Don Haynes of Los Alamos National Laboratory, these methods remain effective:
“There are no system questions that would be answered by a test worth the expense, the effort, or the time.”
Why Trump Says He Wants to Test
Trump’s decision appears driven by Russia’s recent provocations and a looming deadline: the expiration of the last remaining U.S.–Russia nuclear arms treaty, which limits deployed warheads. Moscow’s new weapons tests, some in violation of previous accords, have rattled Washington. But experts note that Russia is testing delivery systems, not detonating live nuclear warheads. That distinction matters. Resuming live testing, they warn, would shatter a fragile global moratorium that has held since the early 1990s and encourage China, North Korea, and others to follow suit. Jon Wolfsthal, director of global risk at the Federation for American Scientists, told NPR:
“We saw this play out throughout the Cold War, one side tests, the other follows. That’s how arms races begin.”
The Global Fallout, Strategic and Political
Resuming nuclear testing could have several immediate consequences:
Diplomatic Isolation — The U.S. would likely alienate NATO partners, Japan, and South Korea, all of whom remain committed to the Comprehensive Test Ban Treaty (CTBT).
Strategic Backfire — As Hinderstein warned, “A decision to resume testing would be extremely dangerous and would do more to benefit our adversaries than the United States.”
Economic Cost — Each test could cost upward of $140 million, according to Paul Dean of the Nuclear Threat Initiative.
Environmental & Health Risks — Though underground tests limit fallout, decades of Cold War testing left behind contaminated groundwater and long-term radiation exposure in Nevada and Utah.
The Heritage Foundation’s Robert Peters conceded that while a test is “not necessary right now,” he added:
“There could very well be compelling reasons to test in the coming months or years. That’s how bad things are getting.”
Is It Necessary or Reckless?
From a defense-readiness standpoint, few experts see merit in returning to full detonations. The U.S. arsenal is modern, stable, and regularly verified through advanced simulations. The consensus inside the scientific community is that testing adds risk without meaningful gain. Instead, analysts argue, Trump’s move is a political gesture, a show of force meant to project power against Russia and China while appealing to his domestic base. But as Corey Hinderstein noted, the cost could be catastrophic:
“Resuming testing risks triggering the very nuclear competition we’ve spent half a century trying to prevent.”
The Verdict
If the U.S. follows through, it won’t just be detonating warheads underground, it’ll be blowing up decades of diplomatic progress. With nuclear tensions rising from Eastern Europe to the South China Sea, experts say America’s strength lies not in revisiting its atomic past but in reasserting its scientific and moral leadership. Whether the Trump administration sees that as strength or weakness could define the world’s next nuclear chapter.
Sources
Reuters, “Trump declines to rule out underground nuclear tests” — details President Donald Trump’s announcement and context of Russian/Chinese testing. (Reuters)
- Politico, “Trump says he is restarting US nuclear testing” — covers the directive to the Pentagon and the broader implications. (Politico)
- AP News, “Trump’s testing plans for US nuclear weapons won’t include explosions, energy secretary says” — clarifies that the planned tests are “noncritical” and not full nuclear detonations. (AP News)
- Time, “After Russia Conducts Nuclear Weapons Tests, Trump Announces U.S. Will Restart Its Own” — gives narrative context, timing around summit with Xi Jinping, and reactions. (TIME)
- Le Monde (English edition), “Trump-Xi meeting brings temporary lull… preceded by his nuclear-testing announcement” — shows diplomatic surface and link to testing decision. (Le Monde.fr)
