They received considerable support from Minister of Defense Gustav Noske , a member of the Social Democratic Party of Germany , who used them to crush the German Revolution of 1918-1919 and the Marxist Spartacist League and arrest Karl Liebknecht and Rosa Luxemburg , who were killed on 15 January 1919 .
They were liked and supported by Minister of Defense Gustav Noske , a member of the Social Democratic Party of Germany , who used them to stop the German Revolution and the Marxist Spartacist League , and also to murder Karl Liebknecht and Rosa Luxemburg on 15 January 1919 .