By Brad Lendon, NCS

(NCS) — The world handed a nuclear milestone this week. And, maybe surprisingly given the current run of saber-rattling from the likes of Russia and the United States, it’s a optimistic one.

“As of today, the world has gone eight years, four months, and 11 days without a nuclear test … From now on, every day without a nuclear explosion will set a new record,” Dylan Spaulding, senior scientist on the Union of Concerned Scientists (UCS), wrote in a blog post Wednesday noting the milestone.

Wednesday’s watershed means the planet has seen its longest interval with out a nuclear explosion because the daybreak of the nuclear period on July 16, 1945, when the US exploded an atomic machine in Alamogordo, New Mexico – the Trinity check – main as much as the atomic bombings of Hiroshima and Nagasaki, Japan, close to the top of World War II.

North Korea performed the world’s final nuclear check on September 3, 2017.

The earlier longest interval with out a check was from May 30, 1998, when Pakistan performed its final check, to October 3, 2006, when North Korea performed its first.

Spaulding cautions how fragile this “winning streak” has develop into, given threats by US President Donald Trump to resume nuclear testing.

“Reopening this Pandora’s box is both unnecessary and unwise,” Spaulding wrote.

“Unrestrained tests lead to competition, instability, and a degree of uncertainty that can scarcely be afforded on top of our existing global precarity,” he wrote.

In one other warning signal, Trump has stated he’s keen to permit the expiration on February 5 of a US-Russia treaty that caps the variety of deployable nuclear weapons either side has.

Russia maintains the world’s largest stockpile of nuclear weapons with greater than 4,300, in line with the Stockholm International Peace Research Institute. The US has about 3,700, with Moscow and Washington collectively accounting for 90% of the world’s nuclear weapons, the SIPRI says.

Decades of nuclear testing

Since the Trinity check, the world has seen 2,055 nuclear assessments by eight nations, in line with the Arms Control Association.

The US has performed essentially the most assessments – 1,030, adopted by Russia/USSR, 715; France, 210; China and the UK, 45; North Korea, six; India, three; and Pakistan, two.

Those assessments have occurred in locations starting from Pacific atolls to deserts within the US and China to the Russian Arctic, usually with heavy tolls on human and environmental well being.

Widespread nuclear testing stopped within the late Nineties, when the Comprehensive Nuclear-Test-Ban Treaty was opened for signature.

Though it’s by no means come into pressure – primarily as a result of the US signed however by no means ratified it – nations have largely abided by its circumstances, except North Korea, which has been considered a rogue state and put beneath United Nations sanctions.

And since that 2017 check at North Korea’s Punggye-ri check web site, a lot of the world has been on look ahead to Kim Jong Un to conduct one other, given his huge funding in a missile program that has given him weapons able to reaching the continental US.

But in current months, consideration has turned to Washington and Moscow as Trump and subsequently Russian chief Vladimir Putin have threatened to restart nuclear testing of their nations.

The US final examined a nuclear weapon on September 23, 1992. And Russia final exploded a nuclear machine in 1990, when it was nonetheless the Soviet Union.

New threats to check

During a go to to South Korea in October, Trump vowed to start testing US nuclear weapons “on an equal basis” with Russia and China, saying he had instructed the Defense Department to start fast preparations for such testing.

Every week after Trump’s announcement, on November 5, Putin directed the Russian military to start making ready for weapons assessments.

Nuclear weapons assessments are performed to gauge the results of latest advances within the bombs or to make sure current weapons will nonetheless work if fired.

Spaulding and different scientists say it’s all pointless. That’s as a result of the nuclear powers now have the know-how to conduct “sub-critical” assessments, which might mimic a nuclear course of proper as much as the purpose of detonation.

“Advanced nuclear states are technically well beyond the point of exploring whether their weapons will detonate reliably,” he wrote.

Any US testing now brings into query whether or not Washington has been a dependable steward of its large nuclear arsenal, in line with Spaulding.

“While the Trump administration may view a test as a contribution to deterrence, it may actually have the opposite effect by projecting an irreconcilable lack of confidence in the US stockpile,” he stated.

START treaty to lapse

The fears of renewed nuclear testing are being exacerbated by the upcoming lapse of the New Strategic Arms Limitation Treaty (START), applied in 2011, which limits the variety of nuclear warheads the US and Russia can deploy to 1,550.

According to a report this week from the Union of Concerned Scientists, these numbers may spike rapidly after February 5.

“Within weeks, the United States could field another 480 nuclear weapons at bomber bases. Within months, it could load almost 1,000 additional nuclear warheads onto submarines. And within years, it could load an additional 400 nuclear warheads onto land-based missiles. Russia could do the same, increasing the stakes of political tension and the possibility of deeply catastrophic miscalculations,” the UCS stated.

“Both Russia and the United States already have more than enough nuclear weapons to devastate each other many times over. Adding more to the mix increases the chances of an accident, and the consequences of miscalculation or escalation,” stated report creator Jennifer Knox, a coverage and analysis analyst on the UCS.

START has been on shaky ground since 2023, when Putin suspended Russian participation in it, citing amongst different causes US help for Ukraine within the aftermath of Moscow’s full-scale invasion of its neighbor.

Moscow has stopped permitting verification inspections, and the US has reciprocated.

But the Russian chief final September provided to increase observance of START’s limits by a 12 months after February 5.

Trump, nonetheless, appears inclined to let it lapse.

“If it expires, it expires,” he stated. “We’ll do a better agreement,” he advised The New York Times earlier this month, whereas indicating China must be a part of any new pact.

So on this record-setting week, there may be extra unease than celebration amongst those that watch nuclear proliferation intently.

“While the world has quietly broken a record for the longest period of time without a nuclear test, it is clear that this stability is fragile,” the UCS’s Spaulding wrote.

The-NCS-Wire
™ & © 2026 Cable News Network, Inc., a Warner Bros. Discovery Company. All rights reserved.



Sources