https://www.eca.europa.eu/Lists/ECADocuments/REW19_09/REW_EU-defence_EN.pdf
https://www.brookings.edu/blog/up-front/2017/08/03/the-hutchins-center-explains-the-debt-limit/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=54989469
https://www.brookings.edu/blog/up-front/2023/01/25/how-worried-should-we-be-if-the-debt-ceiling-isnt-lifted/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=243260050&utm_source=hs_email