The Communist Party of Germany (KPD) and the east German branches of the Social Democratic Party of Germany (SPD) merged to form the Socialist Unity Party of Germany (SED) on 21 April 1946.

Under Thälmann's leadership the party directed most of its attacks against the Social Democratic Party of Germany (SPD), which it regarded as its main adversary and referred to as "social fascists"; the KPD considered all other parties in the Weimar Republic to be "fascists".

The Social Democratic Party of Germany (German: Sozialdemokratische Partei Deutschlands [zoˈtsi̯aːldemoˌkʁaːtɪʃə paʁˌtaɪ ˈdɔʏtʃlants], SPD [ɛspeːˈdeː] ⓘ) is a social democratic [2][3][4] political party in Germany. It is one of the major parties of contemporary Germany.

Divisions over ideology and policy in the ranks of the SPD gave birth to two Weimar left-wing parties: the Independent Social Democratic Party of Germany (Unabhängige Sozialdemokratische Partei Deutschland, or USPD) and the Communist Party of Germany (Kommunistische Partei Deutschlands, or KPD).

Jan 9, 2013 · The last federal elections were held on 6 March: despite the Nazi repression, the KPD still received 12.3 percent (4.8 million votes) and the Social Democratic Party (SPD) 18.3 percent (7.3 million votes).

Mar 8, 2025 · Social Democratic Party of Germany (SPD), Germany’s oldest political party and one of the country’s two main parties (the other being the Christian Democratic Union). It advocates the modernization of the economy to meet the demands of globalization, but it also stresses the need to address the social needs of workers and society’s disadvantaged.

The East German branches of the Communist Party of Germany (KPD) and the Social Democratic Party of Germany (SPD) merged to form the Socialist Unity Party of Germany (SED) on 21 April 1946 in the territory of the Soviet occupation zone. It is considered a forced merger.

Immediately after the end of the war in 1945, the German Communist Party [Kommunistische Partei Deutschlands or KPD], acting on Stalin’s instructions, rejected social-democratic efforts to unite the two workers’ parties.

On April 21-22, 1946, the KPD and the SPD in the Soviet occupation zone merged to form the Socialist Unity Party of Germany [Sozialistische Einheitspartei Deutschlands or SED]. Wilhelm Pieck (KPD) and Otto Grotewohl (SPD) became co-chairmen of the new party.

Einheit SPD-KPD is an East German short subject documentary film about the merging of the Communist Party of Germany (KPD) and the Social Democratic Party of Germany (SPD) into the Socialist Unity Party of Germany (SED), directed by Kurt Maetzig. It was released in 1946.