Despite the ebbs and flows observed in Turkiye’s relations with the European Union, Turkiye is still formally a candidate for accession. It also occupies an important position in the EU’s external relations as a neighboring country with extensive involvement in adjacent regions in areas such as security, migration, trade and energy. Recently Russia’s invasion of Ukraine created seismic waves in European security architecture and drew attention to Turkiye’s role as a mediator. Moreover, Ukraine’s candidacy to the EU revitalized the enlargement process creating doubts about the future of the EU’s borders among the other candidate countries. Irrespective of the membership prospect, close economic and commercial relations as well as Turkiye’s role in European security warrant closer cooperation, dialogue and coordination between the parties. This seminar aims to explore the prospects for closer engagement between the EU and Turkiye owing to the changing conditions following the War in Ukraine. Expert speakers will provide their perspectives regarding Turkiye-EU relations under the effects of Russia’s invasion of Ukraine regarding European security architecture, the energy crisis, the green deal, trade and economic relations, and the question of EU borders and enlargement.