What is greater Macedonia's justification?

Answer 1

There is no such thing as a Greater Macedonia and in particular one that was divided. This is Propaganda by the Former Yugoslav Republic whose aim is to distort historical reality and create a false impression to all those readers not familiar with Balkan history. Particularly that before the Balkan wars (1912-13) a sovereign state entity with the name Macedonia existed, inhabited by an alleged "Macedonian" ethnicity, that was attacked, defeated and consequently partitioned by the allied Greeks, Serbs and Bulgarians. However, the three areas which compose this imaginary unity, that is modern FYROM, Greek (Aegean) Macedonia and Bulgarian (Pirin) Macedonia didn´t constitute ever an ethnological, historical, cultural and linguistic united territory. Even the name Macedonia itself was not applied to the whole area (especially the greater part of today´s FYROM that lies northern of the Prilep-Strumica line).

The ancient Greek kingdom of Macedonia was a Hellenic (Greek) kingdom on the northern Greek peninsula. The modern Greek province of Macedonia is a Hellenic (Greek) province on the northern Greek peninsula.