Nova regionalna organizacija uključuje ukupno 27 država članica EU i balkanske zemlje Albaniju, Hrvatsku, Bosnu i Hercegovinu, Crnu Goru i Tursku, kao i Alžir, Egipat, Izrael, Jordan, Liban, Monako, Maroko, Mauritaniju, Siriju, Tunis i Palestinske teritorije.
In all, the new regional organisation includes the 27 EU member states and the Balkan countries of Albania, Croatia, Bosnia and Herzegovina, Montenegro and Turkey, as well as Algeria, Egypt, Israel, Jordan, Lebanon, Monaco, Morocco, Mauritania, Syria, Tunisia and the Palestinian territories.