https://www.whitehouse.gov/wp-content/uploads/2023/04/US-Withdrawal-from-Afghanistan.pdf
https://media.defense.gov/2022/Oct/27/2003103845/-1/-1/1/2022-NATIONAL-DEFENSE-STRATEGY-NPR-MDR.PDF
https://www.crisisgroup.org/europe-central-asia/eastern-europe/ukraine/256-peace-ukraine-i-european-war
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