The Treaty of Versailles created nine new nations: Finland, Austria, Czechoslovakia, Yugoslavia, Poland, Hungary, Latvia, Lithuania and Estonia. The treaty was written by the Allies without German help starting in January of 1919 and ending in June of 1919.
The Treaty of Versailles was quite long and had 15 separate parts with 440 articles. The Germans were upset with the treaty and did not want to sign it into action, but ultimately did, although the United States Senate did not ratify the treaty. The U.S. government also did not want to take part in enforcing the treaty, so the Belgians and the French were left to enforce it on their own. However, after 5 years, they modified parts of the treaty for Germany's sake because it was difficult to enforce the sanctions.
When the Treaty of Versailles was signed, it ushered in a new era and put an end to World War I. Little did the nations know, but less than 20 years later Adolf Hitler would rise to power and bring the world into World War II, destroying any effect the Treaty of Versailles might have had. When World War II came to an end, the parties decided not to draw up another formal treaty.