Why was there an opposition to the weimar republic in the years 1918-1923?

The Weimar Republic was created at a time of confusion and chaos after Germany had lost World War One. People were starving, the Kaiser had fled and the new Republic got off to a troubled start for two reasons:

Many Germans hated the government for signing the armistice in November 1918 - they called them the November criminals. The defeat in the war came as a huge surprise to the German people, which led to a theory that the brave German army had been ‘stabbed in the back’ by the politicians.

Many Germans felt their country had received a very harsh deal in the Treaty of Versailles. They resented the government for agreeing to its conditions and signing it, even though they were forced to by the Allies.

The Weimar Republic's unpopularity meant it faced violent uprisings from both sides of the political spectrum during 1919 and 1920.

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