主题词：Balkans: History, Politics, Society; Byzantine Studies and History; Balkan and Eastern European Studies; Historical Geopolitical and Social Dynamics; Soviet and Russian History; Eurasian Exchange Networks; Eastern European Communism and Reforms; Post-Communist Economic and Political Transition; Educator Training and Historical Pedagogy; European and Russian Geopolitical Military Strategies; Regional Socio-Economic Development Trends; Central European and Russian historical studies; Security, Politics, and Digital Transformation; European Politics and Security; Philippine History and Culture; Economic Issues in Ukraine; Sport and Mega-Event Impacts; Global Trade and Competitiveness; European Political History Analysis; Ukrainian Cultural and Linguistic Studies; Archaeology and Historical Studies; Regional Development and Management Studies; Economic Development and Digital Transformation; Ancient and Medieval Archaeology Studies; Contemporary and Historical Greek Studies