The Greeks cleansed a lot of “Slavs” from Macedonia, Greece, didn’t they?
Actually Greeks OWN much of the industry in FYROM. It is a source of cheep labor.
OTE (the Greek Phone company) set up much of the infrastructure.
Right now the primary objective is establishing as much political stability to try and stop the flood of illegal aliens. Of course the USA does not help with that with all the bone headed thinking that comes out of our state department.