Tuhia he whakamāramatanga mō tēnei whitiāhua - I runga i te whakaaro, i piri te rōpū, mai i tōna whakatūnga, ki te Marxism<unk>Leninism, he whakakotahitanga o ngā whakaaro taketake o te tohunga whakaaro nui me te tohunga o te ohaoha a Karl Marx, me a Lenin, i whakaurua e Joseph Stalin i te tau 1929, i whakatūria hei kaupapa ārahi o te rōpū, ā, i noho tonu i te wā katoa o tōna oranga. I whai te rōpū i te pāpori kāwanatanga, i raro i nga ahumahi katoa i Tiamana ki te Rawhiti, a, i whakatinanahia he ohanga whakahaere. I whakatauhia e te SED te whakaako i te Marxism-Leninism me te reo Ruhia i roto i nga kura. Ko Walter Ulbricht te tino rangatira o te roopu me te kaiarahi whai hua o Tiamana ki te Rawhiti mai i te 1950 ki te 1971. I te tau 1953, he whakaekenga ki te Pāti
i tutaki ki te tukino kaha e te Manatū o te Haumarutanga o te Kawanatanga me te Ope Taua o Soviet. I te tau 1971, i whai muri a Ulbricht i a Erich Honecker nana nei i whakahaere i tetahi wa pumau i te whanaketanga o te GDR tae noa ki te wa i peia ai ia ki te heke i te hurihanga o te 1989. Ko te kaiarahi whakamutunga o te roopu, ko Egon Krenz, kaore i angitu i tana ngana ki te pupuri i te mana o te SED mo te kawanatanga torangapu o te GDR ka hopukina i muri i te whakakotahitanga o Tiamana.