https://www.atlanticcouncil.org/wp-content/uploads/2020/09/Why_the_US-Italy_Relationship_Matters.pdf
https://www.osw.waw.pl/sites/default/files/pw_69_pesco_ang_net.pdf
https://www.nzz.ch/meinung/russland-gegen-ukraine-putin-plant-einen-langen-krieg-ld.1772254