The All Japan Dockworkers' Union (JDU; ja, 全日本港湾労働組合, Zenkowan) is a

trade union A trade union (labor union in American English), often simply referred to as a union, is an organization of workers intent on "maintaining or improving the conditions of their employment", ch. I such as attaining better wages and benefits (s ...

representing port workers in Japan. The union was established in 1946, and was affiliated with

Sanbetsu () was a Japanese trade union centre between 1946 and 1958. When it was founded in 1946 it emerged as the main force in the Japanese post-war labour movement and led a campaign of militant strikes. However, it suffered a major backlash after only ...

. However, in 1950 it switched to the new

General Council of Trade Unions of Japan A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry. In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". O ...

(Sohyo). Its membership reached 28,214 by 1970, then fell to 22,124 in 1985. In 1989, Sohyo merged with the

Japanese Trade Union Confederation The , commonly known as , is the largest national trade union center in Japan, with over six million members as of 2011.Rengo websitRengo brochure 2010-2011 Retrieved on July 6, 2012 It was founded in 1989 as a result of the merger of the Japa ...

, but Zenkowan instead opted to become independent.

References

External links

*{{official website, https://www.zenkowan.org/ Port workers' trade unions Trade unions established in 1946 Trade unions in Japan