 Nekufamba kwenguva, Social Democratic Party neCommunist Party of Germany KPD yakanga ichangobva kuumbwa, iyo yainyanya kuumbwa nevaimbova nhengo dzeSPD, yakava vavengi vane utsinye, kunyanya nemhaka yenhaka yeGerman Revolution. Pasi peGurukota reDziviriro reGermany Gustav Noske, bato rakabatsira mukudzvinyirira kumukira kwechiKomonisiti uye kuruboshwe kweSpartacistGermany yose mukuvamba kwa1919 nokushandiswa kweFreikorps, chisarudzo chinopanikirika mutsika icho chakaramba chiri manyuko emakakatanwa akawanda pakati pevanyori venhau kusvikira kuzuva rino. Kunyange zvazvo KPD yakaramba ichishora zvakasimba hurongwa hweparamende hwakanga hwachangobva kugadzwa, SPD yakava chikamu cheinonzi Weimar Coalition, imwe yembiru dzeruzhinji rwaive rwuchirwisana, ichitungamirira makambani akati wandei ehurumende dzepakati pehondo. Tyisidziro yavaKomonisiti yakaisa SPD mumugariro wakaoma. Bato racho raiva nesarudzo pakati pokuva rakanyanyisa iro raigona kunetesa vaKomonisiti asi kurasikirwa nenheyo dzaro pakati pemapoka epakati kana kuti kuramba riri pakati nepakati, izvo zvaizokuvadza nheyo dzaro pakati pemapoka evashandi. Mapoka akapatsanuka akaumbwa: Muna 1928, boka duku rakazviti Neu Beginnen, mumatsutso a 1931, Socialist Workers Party yeGermany. Iron Front, yakavambwa muna December 1931, yakanga isiri bato rakaparadzana asi mubatanidzwa usina kutsigira bato unotungamirirwa zvikurukuru neSPD. 