Japan lobby in the United States

[3] The formation of the Japan lobby dates back to the purge of officials involved in Japanese expansionism during Shōwa statism.

[2] During the reform period, Kern and the ACJ launched a sustained pressure campaign against the business purge and Zaibatsu dissolution program.

[14] The Japan lobby was largely successful at both shifting US occupation policy towards an anti-leftist focus and reconstructing the Zaibatsu into shareholder institutions.

The Korean War and the loss of China scare fueled a wave of anti-communist policies which led to the outlawing of the Central Committee of the Japanese Communist Party and its media organ Akahata, as well as purges of the civil service and labor unions.

[15] The compounding wave of leftist regime change and instability in East Asia convinced Defense Secretary James Forrestal to advocate for a Reverse Course in the same policy line of the ACJ.

The proposed policies of the ACJ were also enacted into Japanese law via the 1960 revision to the Security Treaty draft by Kishi and implemented under his brother, Eisaku Satō.