Heads of governments from the European People's Party are set to convene in Meise near Brussels Wednesday in preparation for the EU summit Thursday.
Bulgarian PM Boyko Borisov is among the leaders set to take part in the summit, as his center-right GERB party is an EPP member.
The high EPP convention will focus the central topis of the imminent Council, which are the EU's strategic priorities in foreign policy and economic governance.
In addition to having the largest political group in the European Parliament, the rightist EPP has the most national government leaders in the EU, with 15 of the 27 member-states ruled by EPP cabinets, including EU-greats such as Germany, France, Poland and Italy.
The EPP summit will involve, as traditional, non-cabinet EU leaders from the EPP such as the President of the EU Council Herman Van Rompuy, President of the European Commission Jose Manuel Barroso, and President of the European Parliament Jerzy Buzek.
The meeting will also include heads of government of non-EU European countries, namely the PMs of Croatia, FYROM, Albania, Georgia, Moldova, as well as the deputy-PM of Serbia.