This republic represents the greatest basis for that universal socialist order, the creation of which is at the present time the historic task of the International Proletariat.

He continued to be a major critic of the Social-Democratic leadership under Karl Kautsky and its decision to acquiesce in going to war. Liebknecht's parents were second cousins; his maternal great-grandmother was the sister of one of his paternal great-grandfathers. See also
Luxemburgism
Ture Nerman & Zeth Höglund
Karl Liebknecht (film).

Liebknecht and Luxemburg were murdered. [About this sound] Karl Liebknecht (help·info) (13 August 1871 Leipzig Saxony Germany – 15 January 1919 Berlin Germany) was a German socialist and a co-founder with Rosa Luxemburg of the Spartacist League and the Communist Party of Germany.