Abbas is a political analyst specialising in international security, conflict mediation, and multilateral cooperation, with a particular focus on Syria and the wider Middle East. His work examines how international organisations engage in complex conflict environments and how diplomatic, humanitarian, and development actors coordinate their efforts in fragile contexts.

He has extensive experience analysing the role of the United Nations, the European Union, and regional organisations in conflict mediation and peace processes, with a strong emphasis on institutional coordination, political dynamics, and policy implementation. His research combines field-informed perspectives from the Middle East with policy analysis of international governance structures.

Abbas has worked with international institutions including the European Commission and the German development agency GIZ, contributing to policy analysis, strategic briefings, and monitoring processes in international cooperation projects. His broader expertise includes multilateral diplomacy, conflict-sensitive approaches, international security policy, and governance in fragile and conflict-affected settings.