The East Asia Anti-Japan Armed Front (東アジア反日武装戦線, Higashi Ajia Hannichi Busō Sensen, EAAJAF) was a Japanese New Left terrorist organization that existed from 1972 to 1975.
They constructed the bombs with the tools and basic necessities that they had on hand, but there were also members who dug under the floor of their own apartments and created underground bomb-making cellars.
On 14 August 1974, they tried to blow up the iron bridge over which the Emperor Hirohito's royal train was travelling, which they code named the "Rainbow Operation".
[7] Perhaps because they were originally classmates, the EAAJAF was known for rejecting the "internal struggle" (内ゲバ, uchigeba), which manifested as sometimes violent self-criticism sessions popular within Japanese New Left groups, in order to expose those among their members who were not ideologically pure.
By contrast, there were no bloody purges in the EAAJAF and those members who had family commitments or were unable to mentally endure the struggle were permitted to leave without penalty.