Aftermath of World War I Slovenians made strong claims on some German-speaking territories. The result was treaties that compromised many ideals, offended many allies, and set up an entirely new order in the area. Many people hoped that the new nation states would allow for a new era of prosperity and peace in the region, free from the bitter quarrelling between nationalities that had marked the preceding fifty years. This hope proved far too optimistic. Changes in territorial configuration after World War I included: These changes were recognized in, but not caused by, the Treaty of Versailles. They were subsequently further elaborated in the Treaty
Romania during World War I in May 1918. On 10 November 1918, just one day before the German armistice and after all the other Central Powers had already capitulated, Romania re-entered the war after the successful Allied advances on the Macedonian Front. The Kingdom of Romania was ruled by kings of the House of Hohenzollern from 1866. In 1883, the King of Romania, Carol I of Hohenzollern, signed a secret treaty with the Triple Alliance that stipulated Romania's obligation to go to war only in the event that Austro-Hungarian Empire was attacked. While Carol wanted to enter World War I as an ally of the