The Social Democratic Party (社会民主党, Shakai Minshu-tō, often abbreviated to 社民党 Shamin-tō; SDP) is a political party in Japan that was established in 1996. Since its reformation and name change in 1996, it has advocated pacifism and defined itself as a social-democratic party. It was previously known as the Japan Socialist Party (日本社会党, Nihon Shakaitō, abbreviated to JSP in English). The party was refounded in January 1996 by the majority of legislators of the former Japan Socialist Party, which was largest opposition party in the 1955 System; however, most of the legislators joined the Democratic Party of Japan after that. Five leftist legislators who did not join the SDP formed the New Socialist Party, which lost all its seats in the following elections. The SDP enjoyed a short period of government participation from 1993 to 1994 as part of the Hosokawa Cabinet and later formed a coalition government with the Liberal Democratic Party under 81st Prime Minister Tomiichi Murayama of the JSP from 1994 to January 1996. The SDP was part of ruling coalitions between January and November 1996 (First Hashimoto Cabinet) and from 2009 to 2010 (Hatoyama Cabinet). More information...
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