I roto i te Hui-tanguru 1915, i runga i te whakaoho o te SPD rōpū kaiārahi, i tonoa Liebknecht mo te mahi hōia ki te whakakore ia, te anake SPD mema ki te kia pera. No te mea o ona ngana ki te whakahaere i te hunga e whakahe ki te whawhai, i peia ia i roto i te SPD, a i roto i te Pipiri 1916, i whiua ia i runga i te whakapae o te haepapa nui ki te wha tau i roto i te whare herehere. I a Liebknecht i roto i te ope taua, i tuhituhi a Rosa Luxemburg te nuinga o nga "Spartacus Letters". I muri i te mahi i te whiu whare herehere, i tukuna ia ki te whare herehere i raro i te "whakapunga ārai" tae noa ki te mutunga o te pakanga. Pātai: He aha te hara i tukuna ai a Liebknecht ki te whare herehere?
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