Among others, it will include Russia.
In a statement given to "Politika" daily, he said that in addition to US Envoy Matthew Palmer, it is possible that Germany and France would appoint a joint representative, or that each of these countries has a representative.
"I am convinced that, if we do not do that, we will be sorry in a couple of years", stated Federica Mogherini.
In her address at the annual conference of EU Ambassadors in Brussels, she assessed that the accession of the Western Balkans in the EU is an issue of a reintegration of the whole European continent and that it is necessary for the Balkans, as well as the EU.
Romania's Foreign Minister Ramona Manescu attended a Gymnich informal meeting of European Union foreign ministers in Helsinki, Thursday and Friday, where she also had a meeting with the High EU Representative for Foreign Affairs and Security Policy Federica Mogherini.
He added that everything will depend on an agreement between the big players, including the US and EU, and an agreement reached by the leaders on the ground.
Carpenter believes that under current political situation in Serbia and Kosovo, it is unlikely that the idea of an exchange of territories might succeed.
As European media report, EU members had officially named Borrell the successor of Federica Mogherini on the position of EU High Representative for Foreign Policy and Security.
Borrell will take over his duty at the end of October, it is said in the European Council statement.
The European Union's Foreign Affairs Council has approved measures against Turkey in response to its plans for illegal hydrocarbons drilling in the Exclusive Economic Zone of the Republic of Cyprus, confirming the 12 July decision of the Council's Permanent Representatives and the conclusions of the 20 June EU summit.