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
Secret treaty which Italy was promised certain territorial concessions in exchange for joining the war on the Triple Entente (Allied) side. Another secret treaty was the Treaty of Bucharest, concluded between Romania and the Triple Entente powers (Britain, France, Italy, and Russia) on August 17, 1916; under this treaty, Romania pledged to attack Austria-Hungary and not to seek a separate peace in exchange for certain territorial gains. Article 16 of that treaty provided that "The present arrangement shall be held secret." After the outbreak of World War I, public opinion in many countries demanded more open diplomacy. After the October Revolution brought