Aftermath of World War I the Allies; during the war, it had sent thousands of labourers to France. At the Paris Peace Conference in 1919, the Chinese delegation called for an end to Western imperialistic institutions in China, but was rebuffed. China requested at least the formal restoration of its territory of Jiaozhou Bay, under German colonial control since 1898. But the western Allies rejected China's request, instead granting transfer to Japan of all of Germany's pre-war territory and rights in China. Subsequently, China did not sign the Treaty of Versailles, instead signing a separate peace treaty with Germany in 1921. The Austro-Hungarian and German
U.S.–German Peace Treaty (1921) During World War I, the German Empire was defeated by the Allied Powers, one of which was the United States. The U.S. government declared war on Germany on April 6, 1917. At the end of the war in November 1918, the German monarchy was overthrown and Germany was established as a republic. In 1919, the victorious Allied Powers held a peace conference in Paris to formulate peace treaties with the defeated Central Powers. At the conference, a peace treaty with the German government was concluded. The U.S. government was among the signatories of that treaty, but the U.S. Senate refused