https://www.eca.europa.eu/Lists/ECADocuments/REW19_09/REW_EU-defence_EN.pdf
https://onlinelibrary.wiley.com/doi/10.1111/ecaf.12565
https://www.finance-watch.org/press-release/reaction-european-commission-proposes-approach-to-fiscal-rules-review/
https://rusi.org/sites/default/files/20200221_roberts_integrated_review.pdf