https://www.brookings.edu/articles/the-return-of-the-enemy/
http://peaceandsecurityindex.org/wp-content/themes/peaceandsecurity/images/PSFG-report.pdf
https://www.socialeurope.eu/the-west-must-face-reality-in-ukraine
https://www.almendron.com/tribuna/the-five-futures-of-russia/