https://www.friendsofeurope.org/sites/default/files/media-files/uk_report_web.pdf
https://institute.global/news/globalisation-brexit-and-transatlantic-alliance
https://www.gmfus.org/sites/default/files/2022-02/Keil%20-%20NATO%20core%20tasks%20-%20brief%20NEW.pdf
https://www.instituteforgovernment.org.uk/sites/default/files/publications/IfG_Brexit_customs_WEB.pdf