This is pay-walled, but here's a summary: The country we now call "Macedonia" (i.e. The Republic of Macedonia) was formed in 1991 after Yugoslavia broke up. Greece didn't like the name, because "Macedonia" was already the name of a large region in Northern Greece. This would be similar to a region of Quebec bordering the US breaking away from Canada and calling itself Maine. Some Greeks apparently felt that the Repub…
I was there last year. It's a great country to visit as a tourist. There are much political issues still at large there. With Greece, there's that dispute over who has 'the right' to Macedonia. IMO, neither. There was no Greece and there was no (republic) Macedonia back then. There's an argument about language I've heard, that is that Macedonians spoke Greek. Could be, but things change. It's not like local populace disappeared when Slavs rode in. History is complex, yo and it's in no ones interest to bicker over it.