The Directorate for Security Troops acted as a 20,000-strong paramilitary force for the government, equipped with artillery and armoured personnel carriers. The security troops selected new recruits from the same annual pool of conscripts that the armed services used. The police performed routine law enforcement functions including traffic control and issuance of internal identification cards to citizens. Organized in the late 1940s to defend the new regime, in 1989 the security troops had 20,000 soldiers. They were an elite, specially trained paramilitary force organized like motorized rifle (infantry) units equipped with small arms, artillery, and armored personnel carriers, but their mission was considerably different.