The Allied Forces won World War I on Nov. 11, 1918, which became known as Armistice Day. The Allied forces consisted of Great Britain, the United States, France and Russia. They were opposed to the Central powers, which comprised Germany, the Austro-Hungarian Empire and Italy. The war officially ended on June 28, 1919, after the signing of the Treaty of Versailles.
Germany was held particularly accountable as a Central Power in the Treaty of Versailles. Alsace-Lorraine, Eupen and Malmedy, Northern Schleswig, Hultschin, West Prussia, Posen and Upper Silesia were surrendered by Germany under the Treaty of Versailles. Germany also lost control of its overseas colonies and suffered severe restrictions on trade and industry. Western Germany was demilitarized, and the country lost its submarines and reduced its army size.
Other peace treaties involved in the ending of the Great War include the Treaty of Saint Germain, the Treaty of Trianon, the Treaty of Neuilly and the Treaty of Sevres. Turkey also took a large hit in the courts of the Allies, losing most of its European lands and undergoing rotating occupations by British, French and Greek armies. After four years of total warfare, most of the participating countries were left in a state of disrepair.