Editing Yakuza (section)

===Operation Summit===
Between 1964 and 1965, the Japanese police carried out mass arrests of yakuza leaders and executives in what they called the {{nihongo3|First Operation Summit|第一次頂上作戦|Daiichiji chōjō sakusen}} in response to public demands for the yakuza to be banished from society. As a result, crime declined and the number of arrested yakuza fell from about 59,000 in 1964 to 38,000 in 1967. The number of yakuza organizations and members also declined, from 5,216 organizations and 184,091 members in 1963 to 3,500 organizations and 139,089 members in 1969.<ref name="moj89i">{{cite web|url=https://hakusyo1.moj.go.jp/jp/30/nfm/n_30_2_4_2_5_3.html|title=White Paper on Crime 1989 3 頂上作戦とその影響(昭和30年代末～40年代前半)|pages=|website=[[Ministry of Justice (Japan)]]|archive-url=https://web.archive.org/web/20230731064258/https://hakusyo1.moj.go.jp/jp/30/nfm/n_30_2_4_2_5_3.html|accessdate=30 March 2024|archive-date=31 July 2023}}</ref> As a result, 1963, the year before the First Operation Summit was launched, was the peak of yakuza power.<ref name="npa99"/>

From around 1970, yakuza leaders and executives who had been imprisoned began to be released from prison, and yakuza organizations that had been disbanded during the First Operation Summit were revived and reorganized, leading the police to conduct the Second Operation Summit in 1970 and the Third Operation Summit in 1975. These series of police crackdowns led to a decline in the number of yakuza organizations and members, from 2957 organizations with 123,044 members in 1972 to 2517 organizations with 106,754 members in 1979. As a result, small yakuza organizations were forced to dissolve, and the total number of members decreased, but some members transferred to large yakuza organizations, so the number of members of large organizations actually increased during this period. The three major organizations, Yamaguchi-gumi, Sumiyoshi-kai, and Inagawa-kai, expanded during this period. During this period, Japan was in a recession following the [[1970s energy crisis|energy crisis of the 1970s]], and it became difficult for the yakuza to acquire sufficient financial resources through traditional methods alone, so it was inevitable that they would consolidate into large yakuza organizations with diverse or legal sources of funding.<ref name="npa99"/><ref name="moj89ni">{{cite web|url=https://hakusyo1.moj.go.jp/jp/30/nfm/n_30_2_4_2_5_4.html|title=White Paper on Crime 1989 4 広域化・寡占化による再編の時代(昭和40年代後半～50年代前半)|pages=|website=[[Ministry of Justice (Japan)]]|archive-url=https://web.archive.org/web/20230731194644/https://hakusyo1.moj.go.jp/jp/30/nfm/n_30_2_4_2_5_4.html|accessdate=30 March 2024|archive-date=31 July 2023}}</ref>