which symbols does it use?
The flag used is the Flag of Europe, which consists of a circle of 12 golden stars on a blue background
European Union
The flag used is the Flag of Europe, which consists of a circle of 12 golden stars on a blue background. 
who sits for ireland at the european council table UNANSWERABLE when was this council established? 1975 what's its purpose? It is a collegiate body that defines the overall political directions and priorities of the European Union where is their headquarters? UNANSWERABLE how many members are there? It comprises the heads of state or government of the EU member states, along with the President of the European Council and the President of the European Commission is there a certain number of members required? UNANSWERABLE name a few of the current members Charles de Gaulle is one of them who is their president? The president of the European Council is the person presiding over and driving forward the work of the European Council how is he elected? By the double majority support in the European Council what powers do they have? UNANSWERABLE who are their allies? All members of a political party at national level, most of these are members of a European-level political party or other alliances such as Renew Europe. which functions does the council perform? Appointment of its own President, the High Representative of the Union for Foreign Affairs and Security Policy, and the President of the European Central Bank, it  proposes, to the European Parliament, a candidate for President of the European Commission when do they have meetings? The European Council is required by Article 15.3 TEU to meet at least twice every six months are they part of any summit? Yes which one? Euro name a few of the member states of the union you mentioned Belgium, France, West Germany, Italy, Luxembourg, and the Netherlands
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European Union [SEP] Symbols
The flag used is the Flag of Europe, which consists of a circle of 12 golden stars on a blue background. Originally designed in 1955 for the Council of Europe, the flag was adopted by the European Communities, the predecessors of the present Union, in 1986. The Council of Europe gave the flag a symbolic description in the following terms, though the official symbolic description adopted by the EU omits the reference to the "Western world": "United in Diversity" was adopted as the motto of the Union in the year 2000, having been selected from proposals submitted by school pupils.