
https://ecfr.eu/wp-content/uploads/Ambiguous-alliance-Neutrality-opt-outs-and-European-defence.pdf

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

https://institute.global/policy/emergency-response-coordinated-long-term-strategy-ukraine-four-part-proposal?utm_campaign=38496-&utm_medium=email&utm_source=Institute%20Interests