
https://www.bruegel.org/analysis/defending-europe-without-us-first-estimates-what-needed

https://www.nato.int/en/about-us/official-texts-and-resources/official-texts/2008/04/03/bucharest-summit-declaration

https://www.opendemocracy.net/en/can-europe-make-it/democracy-must-be-re-established-in-eur/