自19世纪末年到第一次世界大战,美国向远东及太平洋地区扩张的主要战略是以“门户开放”为手段,尽量分享其他帝国主义国家已经通过不平等条约从中国攫取的权益。尽管美国没有实际参与列强为建立各自势力范围而对中国领土的瓜分,但美国政府借口传教士和商人的“条约权益”,派遣炮舰巡弋于中国水域,调拨军队驻扎于中国领土。直到华盛顿会议 Since the late 19th century to the First World War, the United States’ main strategy for expanding to the Far East and the Pacific has been to use “open door” as a means of sharing the rights and interests that other imperialist countries have already seized from China through unequal treaties. Although the United States did not actually participate in the partition of China’s territory by the powers in order to establish their respective sphere of influence, the U.S. government excused the “treaty interests” of missionaries and merchants, dispatched gunboats to cruise the Chinese waters and dispatched troops to its territory. Until the Washington meeting