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After an intense feud with each other early in 1992, Shiro Koshinaka and Kuniaki Kobayashi formed a group with Masashi Aoyagi and Akitoshi Saito. Kengo Kimura and the Great Kabuki from WAR soon joined the group. In 1993, they would have a name for their group: Heisei Ishingun, after Riki Choshu's Shōwa period Ishin Gundan stable.
In 1993, Michiyoshi Ohara and Tatsutoshi Goto joined the group, In 1994, Aoyagi left to return to Frontier Martial-Arts Wrestling. In 1996, after the Japanese Jollyjacks split up, Akira Nogami joined, while Kabuki left. Kimura partially left in late 1996 to re-form his old team with Tatsumi Fujinami as well. In 1998, Saito left, while Genichiro Tenryu joined the group. In 1999, Heisei Ishingun disbanded as Goto, Nogami and Ohara joined Masahiro Chono's Team 2000. Koshinaka went back to being a NJPW loyalist, while Kobayashi and Kimura retired and Tenryu, a de facto free agent, continued supporting NJPW loyalists in their battles against Team 2000.
Heisei Ishingun members
- Shiro Koshinaka (1992–1999)
- Kuniaki Kobayashi (1992–1999)
- Masashi Aoyagi (1992–1994)
- Akitoshi Saito (1992–1998)
- Kengo Kimura (1992–1999) - semi-associate after 1997
- Great Kabuki (1992–1996)
- Michiyoshi Ohara (1993–1999)
- Tatsutoshi Goto (1993–1999)
- Akira Nogami (1996–1999)
- Genichiro Tenryu (1998–1999)