
https://www.progressivepolicy.org/blogs/ppis-trade-fact-of-the-week-military-spending-was-2-3-of-world-gdp-last-year/

https://static1.squarespace.com/static/58ed40453a04116f46e8d99b/t/615493df7e967732e8b2592f/1632932843444/Better+Together.pdf

https://dgap.org/system/files/article_pdfs/DPC%20-%20fully%20study%202023%20-%20final.pdf