In cold war period, Southeast Asia under the international situation which U.S. and Soviet Union mutually strives for hegemony, and Southeast Asia countries must observe the might country''s in many regional purposes opinion, and the degree which taked was not been high. Simultaneously, the Southeast Asia countries in order to avoid into the hegemony country’s fall guy, they started mutually to draw up outside the regional security business and strengthen the cooperation like politics, the economy, the culture... and so on. And they attempt in the two-pole system to find Southeast Asia’s development direction. After the Vietnam war (1961-1975), besides the U.S. and China normalization of relation, they associate with Southeast Asia closely, gradually opens the turning point which U.S., China and Southeast Asia cooperate in the future.
After cold war, U.S. and China gradually appear competition in Southeast Asia. On the one hand, U.S. and Southeast Asia countries maintenance military or economic cooperation. On the other hand, China was positive and the Southeast Asia countries contact in 1990 ages, as well as chinese friendly action when 1997-1998 regional finance storm occurs, changed the Southeast Asia countries to China''s view. After 911 event, the regional situation has the momentous change once more, U.S. opened the counter- terrorism war in Southeast Asia, and increases opportunities which the U.S.、China and Southeast Asia cooperates. In opposition terrorism premise, U.S. stably in Southeast Asia''s hegemony status, China increases in Southeast Asia''s influence, Southeast Asia obtains opportunities of leading the regional business
between U.S. and China.
This thesis mainly divides into three periods. First period from 1991 to Southeast Asia finance storm. Mainly discusses U.S. and China in Southeast Asia''s power relations. The second period from the Southeast Asia finance storm to 911 event and mainly discusses which the period of Southeast Asia’s region change. The third period discusses U.S., China, ASEAN tripartite in Southeast Asia''s interaction and to forecast the development of the region.