The Serbian government pursued a policy of forced Serbianisation in the region, which included systematic suppression of Bulgarian activists, altering family surnames, internal colonisation, exploiting workers, and intense propaganda. To aid the implementation of this policy, some 50,000 Serbian army and gendarmerie were stationed in present-day North Macedonia. By 1940 about 280 Serbian colonies (comprising 4,200 families) were established as part of the government's internal colonisation program (initial plans envisaged 50,000 families settling in present-day North Macedonia).