International Institute for Middle East and Balkan Studies (IFIMES[1]) from Ljubljana, Slovenia, regularly analyses developments in the Middle East, Balkans and around the world. Dr. Masahiro Matsumura, Professor of International Politics and National Security, Faculty of Law, St. Andrew's University (Momoyama Gakuin Daigaku) and Member of IFIMES Council prepared an article entitled “The Russia-Ukraine warfare as the final stage of U.S.-Russia proxy war in Donbas (2014-2022)”. In this text he discusses what he calls the final stage of U.S.-Russia proxy war in Donbas. The articleis published in its entirety.