https://carnegieendowment.org/2019/11/21/eu-defense-cooperation-progress-amid-transatlantic-concerns-pub-80381?utm_source=carnegieemail&utm_
https://www.ips-journal.eu/topics/foreign-and-security-policy/a-message-of-disunity-7363/
https://www.cnas.org/publications/podcast/luke-coffey-on-brexit-and-the-future-of-the-special-relationship