The predecessor of this association was the steering committee for the National Foundation Festival (建国祭), which was organized in opposition to May Day.
[1] The Kenkokukai worked in close concert with the police to break the miners strike in Tochigi, and other strikes by factory workers in Kanegafuchi, tramway workers in Tokyo, and tenant farmers in Gifu Prefecture.
Tōyama Mitsuru (頭山満) of the Black Dragon Society (黒龍会) was appointed honorary chairperson, and Nagata, a former Police Chief, vice-chair.
Akao was director of the league, which organized gangs of strike breakers and in 1928 bombed the Soviet embassy.
[2] Their paper Nipponshugi was virulently anti-communist with slogans such as "Death to Communism, to Russian Bolshevism, and to the Left parties and workers' unions".