Meiji period to 1945 In the first half of the
Meiji period (1868–1912), most labour disputes occurred in the
mining and
textile industries and took the form of small-scale
strikes and spontaneous
riots. The second half of the period witnessed rapid
industrialization, the development of a
capitalist economy, and the transformation of many
feudal workers to
wage labour. The use of strike action increased, and 1897, with the establishment of a union for metalworkers, saw the beginnings of the modern Japanese trade-union movement. From 1918 to 1921, a wave of major industrial disputes marked the peak of organized labour power. A prolonged
economic slump that followed brought cutbacks in employment in
heavy industry. In the early 1920s, ultra-cooperative unionists proposed the fusion of labour and management interests, heightening political divisions within the labour movement and precipitating the departure of
left wing unions from Sōdōmei in 1925. The union movement has remained divided between
right wing (“cooperative”) unions and left wing unions ever since. Hampered by their weak legal status, the absence of a right to
bargain collectively with employers, had succeeded in organizing only 7.9% of the labour force by 1931. 5% of unionized workers were members of the
anarchist union federations
Zenkoku Jiren and
Nihon Jikyō. In 1940, the government dissolved the existing unions and absorbed them into the Industrial Association for Serving the Nation (
Sangyo Hokokukai or
Sampō), the government-sponsored workers' organization, as part of a national reorganization of all civil organizations under central government direction By 1960, Japan's labor unions were at the height of their power, and served as the backbone of the massive
1960 Anpo protests against revision of the
U.S.-Japan Security Treaty. However, that same year, the Japanese labor movement suffered a devastating defeat in the climactic
Miike Coal Mine strike at the
Mitsui Miike Coal Mine in Kyushu, marking the high-water mark of labor militancy in Japan. Until the mid-1980s, Japan's 74,500
trade unions were represented by four main labor federations: the
General Council of Trade Unions of Japan (日本労働組合総評議会
nihon rōdō kumiai sōhyōgikai, commonly known as
Sōhyō), with 4.4 million members—a substantial percentage representing public sector employees; the
Japan Confederation of Labour (
zen nihon rodo sodomei, commonly known as
Dōmei), with 2.2 million members; the
Association of Neutral Labour Unions (
:ja:中立労連 Chūritsu Rōren), with 1.6 million members; and the
National Federation of Industrial Organizations (
:ja:新産別 Shinsanbetsu), with only 61,000 members. In 1987 Dōmei and Chūritsu Rōren were dissolved and amalgamated into the newly established
Japanese Trade Union Confederation (
連合 RENGO), and in 1990 Sōhyō affiliates merged with Rengo. ==Membership==