In its 2025 edition, The New EU Frontier delves into a critical dimension of European policy: the economic and geopolitical impact of integrating new countries into the European Union. As Europe adapts to global economic shifts and heightened security demands, enlargement is no longer just a political process—it’s an economic imperative. Estonia, a digital and environmental success story of prior enlargement, now serves as both a blueprint and bridge for countries on the EU accession path, including Moldova, Ukraine, Georgia, and the Western Balkans.