
https://www.timesofisrael.com/what-does-putin-think-hes-doing-an-experts-primer-on-why-he-invaded-whats-next/?utm_source=The+Daily+Edition&utm_campaign=daily-edition-2022-03-11&utm_medium=email

https://rusi.org/sites/default/files/201905_op_which_rules_why_there_is_no_single_rules_based_international_system_web.pdf

https://www.brookings.edu/blog/order-from-chaos/2021/03/30/the-us-military-must-plan-for-encounters-with-private-military-companies/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=118778216&utm_source=hs_email