
https://www.crisisgroup.org/europe-central-asia/war-peace-season-4

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/902342/HMG_Russia_Response_web_accessible.pdf??ncid=newsltukhpmgpols

https://www.belfercenter.org/sites/default/files/GreatMilitaryRivalry_ChinavsUS_211215.pdf