https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/16/1603.htm
https://blogs.lse.ac.uk/europpblog/2023/11/07/europe-ukraine-and-the-west/
https://www.osw.waw.pl/sites/default/files/pw_69_pesco_ang_net.pdf
http://www.kas.de/wf/doc/kas_450-2190-2-30.pdf?170424105349