The UN existed in 1934? Do you have any evidence of a UN observer mission to Greek Macedonia?
Do you have any source that states that the Greek Communist Party did not continue to strictly follow Moscow's directives including an independent Macedonia?
Besides the numerous UN resolutions, I also provided a book with a primary account of Greek children being kidnapped to be moved to communist countries or to forcibly fight in the service of the communists. Feel free at any point in the discussion to provide just one impartial source for any position you're trying to take.
Many children that were in Yugoslavia were returned by 1952. Others remained behind the Iron Curtain until the 1980's or 1990's, and some never returned back. Many came back to find out that their parents had long passed.
One well known example is the town of "Beloiannisz" in Hungary that was home to communist traitors, their families, and kidnapped children. (
http://en.wikipedia.org/wiki/Beloiannisz)