Nocoń, Jarosław, Lesia Dorosh, and Olha Ivasechko. 2019. “Pesco As the Modern Defense Initiative of the European Union: Positions of Western European Countries Vs Positions of Eastern European Countries ”. European Journal of Transformation Studies 7 (2):128-41. https://czasopisma.bg.ug.edu.pl/index.php/journal-transformation/article/view/5013.