https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/16/1603.htm
https://www.osw.waw.pl/sites/default/files/pw_69_pesco_ang_net.pdf
https://carnegieendowment.org/2019/11/21/eu-defense-cooperation-progress-amid-transatlantic-concerns-pub-80381?utm_source=carnegieemail&utm_
https://theconversation.com/habra-mas-guerras-y-disturbios-en-2024-estos-son-los-5-puntos-calientes-que-hay-que-vigilar-220495