Macedonian Foreign Minister Nikola Poposki responded to the letter of Bulgarian counterpart Nikolay Mladenov in which he writes that he shares the same opinion that our frequent communication is turning into a substantial and concrete dialogue based on European principles and values. According to Poposki, this dialogue will contribute e two countries to see each other without prejudices and to act as true and sincere friends and praised the proposal for an agreement on neighborliness and cooperation. For that purpose, Poposki said, we would immediately start to setting up a joint working group and differences should be overcome with mutual respect and trust.