https://europa.eu/globalstrategy/sites/globalstrategy/files/regions/files/eugs_review_web_0.pdf
https://www.crisisgroup.org/europe-central-asia/eastern-europe/ukraine/long-war-ukraine-perspectives-kyiv-and-washington
https://www.ips-journal.eu/topics/foreign-and-security-policy/a-bitter-battlefield-stalemate-6924/
https://www.brookings.edu/blog/order-from-chaos/2021/06/14/the-future-of-nato-in-an-order-transformed/