What countries did not come to the Paris Peace conference?

The Paris Peace Conference was held in Versailles, France in January of 1919. The major players at the conference were the United Kingdom, France, Italy and the United States, which was represented by President Woodrow Wilson. There were over thirty countries that were represented at the conference. At the end of the proceedings, the Treaty of Versailles was signed which came at a heavy cost to Germany and the Austria-Hungarian Empire. Germany was racked with heavy reparations and loss of territory and Austria-Hungary was broken up into smaller states.

The losing side of World War I, the Central Powers, were not invited to the conference as participants. This snub included the countries of Germany, Bulgaria, the Ottoman Empire, and Austria-Hungary. This meant they did not have a voice in the future of Europe, which would cause many problems in the near future. The new Bolshevik government in Russia was also excluded as the Allies refused to recognize the new government.  Japan also dropped out of the conference and was not a part of the final treaty decision.