The
was a trade union

Trade union

A trade union, trades union or labor union is an organization of workers that have banded together to achieve common goals such as better working conditions. The trade union, through its leadership, bargains with the employer on behalf of union members and negotiates labour contracts with...

 centre in Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

. It was founded in December 1926, following the split in the Social Democratic Party

Social Democratic Party (Japan, 1926)

The Social Democratic Party was a political party in Japan between 1926 and 1932...

 as the leaders of the dissident Japan Labour-Farmer Party

Japan Labour-Farmer Party

The was a socialist political party in Japan between December 1926 and December 1928. During its existence, it occupied a centrist position in the divided socialist movement.-Foundation:...

 were expelled from the social democratic Japan Federation of Labour (Sodomei) trade union centre. The Japan Labour Union League functioned as the trade union wing of the Japan Labour-Farmer Party, and had around 5,000-6,000 members.