Bulgarian Agrarian National Union
The DBD had friendly relations with peasants' parties in other Eastern Bloc countries. It had close contacts with the Polish United People's Party (Zjednoczone Stronnictwo Ludowe, ZSL) and the Bulgarian Agrarian National Union (Bǔlgarski Zemedelski Naroden Sǔyuz, BZNS). Besides that, there were some contacts with farmers' associations in West Germany. They had also some contacts with agrarian parties in Finland (Centre Party) and in Sweden (Centre Party).