The specter of nuclear war is rising once more, according to independent watchdogs monitoring the world’s nine nuclear powers in a report published on Monday, June 17.

A one-third surge in spending on nuclear weapons modernization last year, coupled with heightened geopolitical tensions, paints a chilling picture of a potential new arms race.

“We have not seen nuclear weapons playing such a prominent role in international relations since the Cold War,” warned Wilfred Wan, head of the Stockholm International Peace Research Institute’s (SIPRI) weapons of mass destruction program.

SIPRI’s report highlights the wars in Ukraine and Gaza as contributing factors to a deteriorating global security landscape, with those tensions spilling over into nuclear policy.

“It is hard to believe that barely two years have passed since the leaders of the five largest nuclear-armed states jointly reaffirmed that ‘a nuclear war cannot be won and must never be fought,’” Wan added.

Modernization and Deployment

All nine nuclear-armed states – the United States, Russia, China, the United Kingdom, France, India, Pakistan, Israel, and North Korea – are reported to be modernizing their arsenals, with some deploying entirely new nuclear weapon systems.

While the overall stockpile numbers have dipped slightly due to dismantling older weapons, the number of operational warheads – those readily available for use – has crept upwards.

This trend is particularly concerning as both the US and Russia, which possess nearly 90 percent of the world’s nuclear weapons, are believed to have increased their operational stockpiles.