The Socialist Unity Party of Germany (German: Sozialistische Einheitspartei Deutschlands, ; SED, ) was the founding and ruling party of the German Democratic Republic (East Germany) from the country's foundation in 1949 until its dissolution after the Peaceful Revolution in 1989. It was a Marxist–Leninist communist party, established in 1946 as a merger of the East German branches of the Communist Party of Germany and Social Democratic Party of Germany.
