Which groups felt that taking the responsibility for the war as well as paying reparations was a humiliation for Germany? (There are two)

German Politicians and Historians.

Explanation:

The war guilt clause found in the Treaty of Versailles which stipulated that the Germans take responsibility for all the loss and damages accrued from the war, was not pleasant to the Germans as they felt that it humiliated them.

German politicians tried to evoke international sympathy by speaking against the treaty, while, the German historians tried to subvert the treaty of Versailles.

The world war 1 started in 1914, with the assassination of the heir to the Austria-Hungarian throne- Archduke Franz Ferdinand. Germany formed allies with Austria-Hungary, Bulgaria and the Ottoman empire, to fight against the triple entente consisting of France, the United Kingdom and Russia. Germany was defeated in the war and made to pay for damages.