第一次世界大战结束后,日本和中国同作为战胜国出席了1919年初召开的巴黎和会。会上,日本要求将战争中占有的在中国山东的一切权利合法化,而中国代表则提出收回大战时日本攫取的德国在中国山东的各种特权等要求。中国代表据理力争,但英法却支持日本的要求。美国最初本着“门户开放”政策,反对日本独占,但后来日本以拒绝参加美国倡议的国联相威胁时, After the First World War, Japan and China joined the Paris Peace Conference as the victorious nations in early 1919. At the meeting, Japan demanded that all the rights held in the war in Shandong Province in China be legitimized, while the Chinese delegates proposed to lift the various German privileges seized by Japan in wartime in China during the war. Chinese representatives argue hard but Britain and France support Japan’s demands. When the United States initially adhered to the policy of “open door” to oppose Japan’s monopoly, but later Japan threatened with its refusal to participate in the U.S. initiative,