People's Republic of Bulgaria

The People's Republic of Bulgaria (PRB; Bulgarian: Народна република България, НРБ, romanized: Narodna republika Bŭlgariya, NRB; pronounced [nɐˈrɔdnɐ rɛˈpublikɐ bɐɫˈɡarijɐ]) was the Bulgarian state that existed from 1946 to 1990, ruled by the Bulgarian Communist Party (BCP; Bulgarian: Българска комунистическа партия (БКП)) together with its coalition partner, the Bulgarian Agrarian People's Union. Bulgaria was also part of Comecon as well as a member of the Warsaw Pact.

Source: Wikipedia — People's Republic of Bulgaria (CC BY-SA 4.0)