1.The weimar republic was not very well recieved by its own people.
2.The peace treaty at Versailles was a harsh and humiliating peace.
3.The allied powers held the new Weimar republic responsible for the problems the allied armies faced during the war.
4.The weimar republic had to pay the war reperations amounting to 6 billion pound.
5.Germany lost its overseas colonies ,1/10th of its population etc.