For starters, the Paris Peace Treaty that ended WWI causing subjecting Germany to ruinous financial penalties and limited what they could do in the way of rearming themselves to, say, protect themselves from Russia. The outcome of this treaty started the settlement which elaborated in the peace treaties included payment of war reparations, commitment to minority rights and territorial adjustments including the end of the Italian Colonial Empire in Africa. The treaties allowed Italy, Romania, Hungary, Bulgaria, and Finland to reassume their responsibilities as sovereign states in international affairs. The essential cons were particularly in Finland, the reparations and the dictated border adjustment were perceived as a major injustice and a betrayal by the Western Powers. However, this sympathy had been eroded by Finland's cooperation.
Next, Wilson's Fourteen Points, Wilsons fourteen points were a decent attempt at peace and restitution after the Great War; however, it inherited many problems with the Wilsons agenda. These problems were caused by many things, including Allied bias, American ambition, and Western European dominance. While trying to fix many problems in Europe, the Fourteen Points mainly concentrated on the things that were important to the Allied powers: France was bent on revenge, Great Britain was looking to further its power over the seas, and America was keen on becoming an even more powerful trade nation. The Allied Powers made it very hard for Germany and Austria and the newly formed countries in Eastern Europe to carry out many of the things set down in the fourteen points, the idea of self-determination that is evident in over half of the points. They used “self-determination” as a formula for rearranging the balance of power in their own interests. Point Five of the Wilson agenda was called for the "free, open-minded adjustment of all colonial claims."
What this did was allow countries to practice limited forms of