https://www.euronews.com/2019/10/19/european-countries-halted-arm-exports-to-turkey-but-why-haven-t-they-done-the-same-for-sau
http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:52016DC0950&from=en
https://www.theatlantic.com/international/archive/2022/03/biden-nato-summit-russia-invasion-ukraine/627598/