While the U.S carried the flag of democracy, Germany saw the imposed democracy as humiliation and backfired taking a dictatorial stand.
Explanation:
The entrance of the United States into foreign affairs during the war played a major role in preserving the democratic order. President Woodrow Wilson described the intervention of the United States as a way of helping Europe's free peoples, and preserving democracy in Europe. Although it was a period when America further championed the ideals of peace and tranquility, but they were perceived humiliation by the German people. the enormous reparations imposed on Germany after the war. Rather of forging a permanent peace, the post-war pacts had the opposite effect which can be seen in the case of German aggression.
In Western Europe, the war was largely a stalemate as a result of extensive trench warfare that gave the defenders a massive advantage during battles. In Russia, however, the monarchy was overthrown by rebels, who then negotiated peace and surrendered large chunks of land to the Germans, allowing them to concentrate all their troops and resources to the Western Front.
France under the Ancien Régime (before the French Revolution) divided society into three estates: the First Estate (clergy); the Second Estate (nobility); and the Third Estate (commoners).