Socialist Democratic Federation (Japan)

It was formed from the merger of the Socialist Citizen's Federation (社会市民連合, Shakai-shimin-rengō) and the Shakai Club (社会クラブ, Shakai-kurabu).

By this time, JSP was already in severe disarray it was ridiculed as Ni-hon (two-volumed) Shokaito (socialist party).

[5] The Socialist Democratic Federation became part of the non-liberal coalition that elected Morihiro Hosokawa as Japan's Prime Minister in 1993.

[6] During this election, the Shaminren obtained 0.7 percent share of the vote, securing four seats in the Japanese House of Representatives.

[7] In 1977, Hideo Den, Yutaka Hara and Yanosuke Narazaki defected from the SDP and formed the Shakai Club party.