The Japan Revolutionary Communist League (日本革命的共産主義者同盟, Nihon Kakumeiteki Kyōsanshugisha Dōmei, abbr.
Several small groups split from the Japanese Communist Party (JCP) following the Hungarian Revolution of 1956.
[2] Many of the organisation's founding members were active in the All-Japan Federation of Student Autonomous Associations, and disagreed with the JCP policy forbidding the student group from developing any political lines distinct from the party.
[2] The following year, the party split, with dissidents including Kuroda Kan'ichi forming the Japan Revolutionary Communist League National Committee.
This continued until 1968, when the group re-established itself openly, after it had gained members during anti-Vietnam War protests.