The evolution of American East Asia policy after World War II can be divided into four stages: (1) containment and intervention in East Asia (1945- 1969). After the end of World War II, the international strategic pattern has undergone fundamental changes. Against the background of the Cold War between the United States and the Soviet Union, the United States intervened in East Asian affairs with the main goal of containing China. The Vietnam War marked the climax of American intervention in East Asia. (2) Strategic contraction in East Asia (1969- 198 1 year). The relative decline of American power and the increasing tendency of independence in East Asian countries have forced the United States to look at East Asia from a new perspective. Washington extended a hand of reconciliation to China, matched Japan as a partner, approached ASEAN, withdrew its troops from Vietnam and made a series of policy adjustments. The proposal of Nixon Doctrine indicates that the United States has broken away from the idea of simply targeting the Soviet Union or China and started to pursue a more realistic East Asian policy. (3) Return to East Asia (198 1- 1992). The rapid economic development in the Asia-Pacific region and the growth of American interests in the Asia-Pacific region have made the United States more and more aware of the strategic significance of the Asia-Pacific region to the United States. At this time, American leaders have emphasized more than ever that the United States is a "Pacific country" and attached more importance to developing relations with countries in the Asia-Pacific region. Reagan's slogan "America's future is in the Pacific Ocean" shows America's determination to return to Asia. (4) Fully participate in East Asian affairs (1992-2000). After Clinton took office, he put forward the strategic concept of building a "new Pacific", aiming at fully participating in political, economic and security affairs in East Asia and the Pacific, and repeatedly stressed that the future development of the United States is closely related to the region. The author deeply analyzes the main contents and characteristics of American policy in each stage with detailed information.

The evolution of American East Asia policy after World War II can be divided into four stages: (1) containment and intervention in East Asia (1945- 1969). After the end of World War II, the international strategic pattern has undergone fundamental changes. Against the background of the Cold War between the United States and the Soviet Union, the United States intervened in East Asian affairs with the main goal of containing China. The Vietnam War marked the climax of American intervention in East Asia. (2) Strategic contraction in East Asia (1969- 198 1 year). The relative decline of American power and the increasing tendency of independence in East Asian countries have forced the United States to look at East Asia from a new perspective. Washington extended a hand of reconciliation to China, matched Japan as a partner, approached ASEAN, withdrew its troops from Vietnam and made a series of policy adjustments. The proposal of Nixon Doctrine indicates that the United States has broken away from the idea of simply targeting the Soviet Union or China and started to pursue a more realistic East Asian policy. (3) Return to East Asia (198 1- 1992). The rapid economic development in the Asia-Pacific region and the growth of American interests in the Asia-Pacific region have made the United States more and more aware of the strategic significance of the Asia-Pacific region to the United States. At this time, American leaders have emphasized more than ever that the United States is a "Pacific country" and attached more importance to developing relations with countries in the Asia-Pacific region. Reagan's slogan "America's future is in the Pacific Ocean" shows America's determination to return to Asia. (4) Fully participate in East Asian affairs (1992-2000). After Clinton took office, he put forward the strategic concept of building a "new Pacific", aiming at fully participating in political, economic and security affairs in East Asia and the Pacific, and repeatedly stressed that the future development of the United States is closely related to the region. The author deeply analyzes the main contents and characteristics of American policy in each stage with detailed information.

The evolution of American East Asia policy after World War II can be divided into four stages: (1) containment and intervention in East Asia (1945- 1969). After the end of World War II, the international strategic pattern has undergone fundamental changes. Against the background of the Cold War between the United States and the Soviet Union, the United States intervened in East Asian affairs with the main goal of containing China. The Vietnam War marked the climax of American intervention in East Asia. (2) Strategic contraction in East Asia (1969- 198 1 year). The relative decline of American power and the increasing tendency of independence in East Asian countries have forced the United States to look at East Asia from a new perspective. Washington extended a hand of reconciliation to China, matched Japan as a partner, approached ASEAN, withdrew its troops from Vietnam and made a series of policy adjustments. The proposal of Nixon Doctrine indicates that the United States has broken away from the idea of simply targeting the Soviet Union or China and started to pursue a more realistic East Asian policy. (3) Return to East Asia (198 1- 1992). The rapid economic development in the Asia-Pacific region and the growth of American interests in the Asia-Pacific region have made the United States more and more aware of the strategic significance of the Asia-Pacific region to the United States. At this time, American leaders have emphasized more than ever that the United States is a "Pacific country" and attached more importance to developing relations with countries in the Asia-Pacific region. Reagan's slogan "America's future is in the Pacific Ocean" shows America's determination to return to Asia. (4) Fully participate in East Asian affairs (1992-2000). After Clinton took office, he put forward the strategic concept of building a "new Pacific", aiming at fully participating in political, economic and security affairs in East Asia and the Pacific, and repeatedly stressed that the future development of the United States is closely related to the region. The author deeply analyzes the main contents and characteristics of American policy in each stage with detailed information.

The evolution of American East Asia policy after World War II can be divided into four stages: (1) containment and intervention in East Asia (1945- 1969). After the end of World War II, the international strategic pattern has undergone fundamental changes. Against the background of the Cold War between the United States and the Soviet Union, the United States intervened in East Asian affairs with the main goal of containing China. The Vietnam War marked the climax of American intervention in East Asia. (2) Strategic contraction in East Asia (1969- 198 1 year). The relative decline of American power and the increasing tendency of independence in East Asian countries have forced the United States to look at East Asia from a new perspective. Washington extended a hand of reconciliation to China, matched Japan as a partner, approached ASEAN, withdrew its troops from Vietnam and made a series of policy adjustments. The proposal of Nixon Doctrine indicates that the United States has broken away from the idea of simply targeting the Soviet Union or China and started to pursue a more realistic East Asian policy. (3) Return to East Asia (198 1- 1992). The rapid economic development in the Asia-Pacific region and the growth of American interests in the Asia-Pacific region have made the United States more and more aware of the strategic significance of the Asia-Pacific region to the United States. At this time, American leaders have emphasized more than ever that the United States is a "Pacific country" and attached more importance to developing relations with countries in the Asia-Pacific region. Reagan's slogan "America's future is in the Pacific Ocean" shows America's determination to return to Asia. (4) Fully participate in East Asian affairs (1992-2000). After Clinton took office, he put forward the strategic concept of building a "new Pacific", aiming at fully participating in political, economic and security affairs in East Asia and the Pacific, and repeatedly stressed that the future development of the United States is closely related to the region. The author deeply analyzes the main contents and characteristics of American policy in each stage with detailed information.