Research On The Defense Cooperation Of The U.S.-Japan Alliance During The Second Abe Administration

The US-Japan alliance is the product of the continuation and development of the USJapan security system after World War II.In the course of its initial alliance,due to the influence of the international environment and the restriction of the peace constitution,the defense cooperation between the two countries has been at a low level.But since the beginning of the 21 st century,with Japan's national security concept gradually returning to realism,Japan has begun to adopt more and more active and even radical policies in the field of security.After Abe took the post of Prime Minister for the second time,Japan has taken a series of breakthrough measures in the field of military defense,aiming to improve its defense strength,build a multilateral defense cooperation mechanism,maintain its political and economic influence,improve its military response,and maintain its checks and balances with China in the Indo Pacific region.Through the innovation of Japan's defense policy and diplomatic concept,Japan has continuously developed its independent defense forces,at the same time,it has also deepened the degree of military integration between the United States and Japan,and the two countries have entered a new stage of development in the field of defense cooperation.According to the analysis of the realistic alliance theory,it is not difficult to see that the strengthening or weakening of the alliance relationship between the two countries in the development process of the US-Japan alliance is a direct response to the surrounding security environment and a realistic need to check and balance the threat.Under the background of China's rise and North Korea's nuclear issue,strengthening alliance defense cooperation has become an inevitable choice in line with the national interests of the United States and Japan.Nevertheless,under the influence of the dynamic game between countries in the region,the United States and Japan still face the problem of "alliance dilemma".Under Abe's presidency,the strengthening of defense cooperation between the US-Japan alliance and the promotion of Indo-Pacific strategy will greatly affect the security situation of Indo-Pacific region,and exert great strategic pressure on China's maritime access.Based on this,China should fully understand the trend and development of defense cooperation between the two countries,and actively respond.