
https://sipri.org/media/press-release/2018/global-military-spending-remains-high-17-trillion

https://www.gchq.gov.uk/pdfs/speech/director-gchq-global-security-amid-russia-invasion-of-ukraine.pdf

https://www.institute.global/insights/geopolitics-and-security/reimagining-defence-and-security-new-capabilities-for-new-challenges