Question to the HM Treasury:

To ask the Chancellor of the Exchequer, pursuant to the Answer of 1 July 2025 to Question 63032 on National Security: Expenditure, if she will publish the NATO reporting guidelines.

NATO has a common definition of defence expenditure that is agreed by all NATO allies.

The definition of NATO defence expenditure, and the recently announced defence and security related spending, can be found on the NATO website.

NATO - Topic: Defence expenditures and NATO’s 5% commitment