Wilson's attempt in his Fourteen Points at allowing nationalities to rule themselves fell apart quickly. While the Allies used a team of academic experts in order to redraw the territorial boundaries of Europe, in many cases it was impossible to divide countries by nationality alone. Even many villagers did not claim a nation; rather, they said that they were from that particular village. Because of this, many German-speakers were estranged from Germany when the Allies created Poland. Yugoslavia would also be a mix of the different groups of the region who still did not have self-rule.
Part of Wilson's attempts at peace did stay in the Versailles Treaty and the immediate aftermath. There was some attempt through the Treaty of Versailles at open negotiations through the creation of the League of Nations, but ultimately the organization had little power and would be proven ineffective before WWII. There was some attempt to disarm through the Washington Naval Conference in the early 1920's but this attempt at arms reduction only angered another rising power, Japan. Wilson's Fourteen Points were cheered by many in Europe who were sick of war, but the leaders of Europe were cynical when Wilson wanted peace without vengeance.