Answer:
The Treaty of Versailles was an international agreement between the Allied and defeated Germany at the end of World War I. It was signed at Versailles, France, at the end of the Paris Peace Conference, on 28 June in 1919.
Under the terms of the treaty Germany was guilty of causing the war and was ordered to pay compensation and limit the strength of its armed forces. It also had to retake the territories of Alsace and Lorraine to France, surrender parts of eastern Germany (Prussia) to Poland and receive the Allied military occupation of the Rhineland. In addition, most German colonies - mainly in Africa - were made mandate territories in charge of the League of Nations. The United States refused to sign the treaty until 1921.
One of the consequences of the terms of the Treaty of Versailles was that it fed on nationalist and imperialist sentiments among the Germans. This eventually led to the growth of Adolf Hitler's Nazism and fascist government.