Question to the Ministry of Defence:

To ask the Secretary of State for Defence, how many people served in the Armed Forces (a) in total and (b) by service between 2003 to 2023.

The requested information is shown in the attached spreadsheet. UK service personnel statistics on strengths, requirements, intake, applications and outflow is published quarterly on GOV.UK here:

https://www.gov.uk/government/collections/quarterly-service-personnel-statistics-index