1. Global spending on nuclear weapons increased by 13.4% in 2023, according to a report by the International Campaign to Abolish Nuclear Weapons (ICAN). 2. The US and UK saw significant increases in their nuclear weapons spending, with the US at 18% and the UK at 17.1%. 3. The total global expenditure on nuclear weapons reached an estimated $91.4 billion, continuing a trend of rising spending since 2019.