Dear Mr. Kirev,
When Socialist Yugoslav state was alive and kicking, the people from Vardar Macedonia used their citizenship as identification speaking with nonspecialists in Western Europe. This citizenship was Yugoslavian. This was the general point, although some people from Vardar Macedonia were specified more profound their country and even some of them had their societies - Bulgarian (in Belgium), Macedonistic (in Sweden) etc. Unfortunately, for the ordinary people in Western Europe, the name "Macedonia" wasn't very familiar then - at least if we are talking about the contemporary (then) states. Their state then was Yugoslavia.
Best regards,
Radoslav B.