
https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/16/1603.htm

https://rusi.org/sites/default/files/20200324_defence_and_integrated_review_readyforweb.pdf

https://www.crisisgroup.org/europe-central-asia/eastern-europe/ukraine/261-peace-ukraine-iii-costs-war-donbas