eng Science and Education Publishing World Journal of Social Sciences and Humanities 2474-1434 2023-02-21 9 1 10 16 10.12691/wjssh-9-1-2 WJSSH2023912 article Duong Quang Hiep dqhiep@hueuni.edu.vn 1 University of Sciences, Hue University, Vietnam The US has continuously changed its policy toward Southeast Asia from the end of the Cold War (1991) to the present in an effort to retain alliances and maintain its dominant position in this region. To extend their influence in Southeast Asia more and more deeply, the main powers - China, India, Russia, Japan, etc. - have intensified their policies to varying degrees and in diverse ways. This has evolved into a factor influencing US foreign policy in Southeast Asia from 1991 to the present. By analyzing the policies and measures in relations with Southeast Asian countries of China, India, Russia, and Japan, the article will show the impacts of these factors on the foreign policy of China. US towards Southeast Asia in the period from 1991 to present. http://pubs.sciepub.com/wjssh/9/1/2/wjssh-9-1-2.pdf US foreign policy strategic competition Southeast Asia influencing factors