Since the signing of the Accession Treaty, Cyprus was called upon to participate in all EU institutions, firstly with an observer status and since 1 May 2004, as a full member with voting rights. As of 2004, the President of the Republic and the Minister of Foreign Affairs participate in all meetings of the European Council. The Minister of Foreign Affairs also participates in the monthly meetings of the General Affairs and External Affairs Councils, whereas all the other Ministers participate in the meetings of the EU Councils of their respective configurations. At the same time, both the personnel of the Permanent Representation of the Republic to the EU in Brussels and the competent officers from all the Ministries in Lefkosia, who travel on a regular basis to Brussels or Luxembourg, represent Cyprus in the approximately 150 Working Groups of the Council of the EU.
In addition, Cyprus has filled in the posts that is entitled to in all EU institutions and is therefore represented in the European Commission, the Court of European Communities, the First Instance Court, the European Court of Auditors, the Committee of the Regions and the Economic and Social Committee. It also has six elected Cypriot Members of the European Parliament.
The Republic of Cyprus also participates actively in the shaping and implementation of the Common Foreign Policy and Security Policy and of the European Security and Defence Policy of the EU. Cyprus participated in the first autonomous military operation of the EU in Congo (ARTEMIS) and in the operation AMIS in Sudan. The Republic also participated with members of the Cyprus Police in two non-military operations in the Balkans (operation EUPM in Bosnia-Herzegovina and operation PROXIMA in the Former Yugoslav Republic of Macedonia). It has also made a financial contribution to the initial phase of the EU operation at the crossing point between the Palestinian Authority and Egypt, in Gaza (EUBAM Rafah Mission).