Ever since its establishment after the First World War, oppositions parties such as the left wing Communist (Spartacist) and Kaiser’s supporters from the right had crashes and revolts which caused high causalities. The important ones such as in January 1919, the Spartacists were defeated by the Freikorps (some anti-Communists made use by the government) resulting more than 2000 causalities. Also, the right wing leader Kapp led a Kapp Putsch in 1920, which failed only because of the strike from the trade unions. Furthermore, the army refused to defend the Republic and several politicians were assassinated at this time. All these added to a sense of mess and instability to the Republic. Besides, the ruthlessness of Ebert in the crash with the Spartacists deteriorated the support from the Germans. As a result, the Republic was so weak in its early years of foundation.
Meanwhile, the government signed the Treaty of Versailles which most Germans felt betrayed by the Allies as they had expected the