What strategy did the United States put forward when it formally implemented the strategic shift during the Obama administration?

The most important strategy during the Obama administration was the Asia-Pacific rebalancing strategy. America's "Asia-Pacific rebalancing" strategy is mainly embodied in three levels: political, military and economic:

On the political level, it is manifested in "frontier deployment" diplomacy, value diplomacy, multilateral diplomacy and so-called "smart power" diplomacy; On the military level, the focus is on consolidating traditional military alliances and seeking to win over and establish new partner alliances; On the economic level, efforts should be made to promote the expansion and upgrading of TPP construction and to build an American-led economic cooperation mechanism in East Asia.

Background: From a military point of view, with the establishment of diplomatic relations between China and the United States in 1979, the United States announced its withdrawal from Taiwan Province Province (although it continued some traces through arms sales to Taiwan), and the alliance between the United States and Taiwan Province Province has ended. In the 1980s, the US-New Zealand alliance actually existed in name only because of the differences between New Zealand and the United States on the listing of nuclear-powered ships.

In the early 1990s, nationalist sentiment in the Philippines was high, and the Congress passed a resolution not to allow the United States to continue to station troops in subic bay. After the Cambodian issue was resolved, Thailand refused to allow the United States to deploy troops and permanent bases in China.

Economically, the past and present Asian allies of the United States-except the Philippines-have almost changed their largest trading partners from the United States to China, and the economic pillars of the bilateral alliance network of the United States have also loosened.

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