https://www.kcl.ac.uk/policy-institute/assets/rising-to-the-china-challenge.pdf
https://www.wilsonquarterly.com/quarterly/understanding-russia/russias-unrestricted-warfare-in-latin-america
https://www.al-monitor.com/originals/2023/11/how-russias-redut-pmc-forced-rival-wagner-withdraw-syria
https://www.science.org/content/article/scientists-russia-struggle-world-transformed-its-war-ukraine