Macedonia (Greece)
Macedonia (; , "Makedonía" ) is a geographic and former administrative region of Greece, in the southern Balkans. Macedonia is the largest and Greek region, with a population of 2.38 million in 2017. The region is highly mountainous, with most major urban centres such as Thessaloniki and Kavala being concentrated on its southern coastline. Together with Thrace, and sometimes also Thessaly and Epirus, it is part of Northern Greece. It also contains Mount Athos, an autonomous monastic region of Greece.
Socialist Republic of Macedonia
The Socialist Republic of Macedonia was the 4th largest constituent country of SFR Yugoslavia both by area and population. Within Yugoslavia, it had an internal border with the Socialist Republic of Serbia to the north and its subunit the Socialist Autonomous Province of Kosovo to the north-west and international borders with Greece to the south, the People's Republic of Bulgaria to the east and the People's Socialist Republic of Albania to the west.