Introduction: "This issue of Security: Theory and Practice represents unique international cooperation among the academics of Andrzej Frycz Modrzewski Krakow University, ESSEC Business School, and Massey University. Three editors Marcin Lasoń (editor in chief), Alex Issa (editor in France), and Lieutenant Colonel (retired) Terence Johanson (editor in New Zealand) gathered carefully selected authors to share their expertise and personal views on the Russian-Ukrainian war."(...)