Japan's Strategic Layout In The Quadrilateral Mechanism Between The United States, Japan, Australia And Indi

The quadrilateral mechanism of the United States,Japan,Australia and India is a small circle of multilateral cooperation led by the United States in the Asia-Pacific region,with obvious strategic orientation towards China and strong geopolitical color.Looking back at the formation and development of this quadrilateral cooperation mechanism,Japan has played a very important role.From the initial positive initiative of the four-country cooperation concept,to the re-promotion of the "Asian democracy and security diamond" concept after the four-country cooperation was cold,to the positive response to the "Indo-Pacific strategy" of the United States,this series of actions promoted the formation,development,deepening and upgrading of the cooperation between the United States,Japan,Australia and India.It remains to be studied how to view Japan’s "positive actions" in the four-nation cooperation process,what kind of means it uses to achieve its goals driven by what national interests,and how to define the nature and characteristics of this four-nation cooperation mechanism.