Nuclear-armed nations boost spending on weapons by one-third

Nuclear-armed countries hiked spending on atomic weapons arsenals by a third in the past five years as they modernised their stockpiles amid growing geopolitical tensions, two reports showed on Monday.

The world's nine nuclear-armed states jointly spent $91 billion on their arsenals last year, according to a new report from the International Campaign to Abolish Nuclear Weapons (ICAN).

That report, and a separate one from the Stockholm International Peace Research Institute (SIPRI), indicated that nuclear weapons states are dramatically scaling up spending as they modernise and even deploy new nuclear-armed weapons.

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"I think it is fair to say there is a nuclear arms race under way," ICAN chief Melissa Parke told AFP.

Wilfred Wan, head of SIPRI's weapons of mass destruction programme, meanwhile warned in a statement that "we have not seen nuclear weapons playing such a prominent role in international relations since the Cold War".

SIPRI's report showed that the total estimated number of nuclear warheads in the world actually declined somewhat to 12,121 at the start of this year, from 12,512 a year earlier.