In 2023, global spending on nuclear weapons increased by 13% to a record $91.4 billion, according to the International Campaign to Abolish Nuclear Weapons (ICAN). The U.S. led the expenditure with $51.5 billion, followed by China at $11.9 billion, and Russia at $8.3 billion. This increase was primarily driven by heightened defense budgets amid geopolitical tensions, including Russia's invasion of Ukraine.

In related developments, Russia and Belarus conducted drills involving tactical nuclear weapons near their border. The Stockholm International Peace Research Institute (SIPRI) noted an increase in the number of active nuclear warheads to 9,585, highlighting that Russia and the U.S. together hold nearly 90% of these warheads. Both nations have seen continued modernization of their arsenals, with Russia deploying around 36 additional warheads in 2023.

Transparency over nuclear capabilities has declined, and discussions around nuclear-sharing arrangements have intensified. These trends signify a growing reliance on nuclear deterrence, reminiscent of Cold War dynamics.