1970
Apr. The US sent troupes to Cambodia.
Mar.~Sep. The Osaka World Fair took place.
Nov.25 The novelist, Yukio Mishima, committed hara-kiri in the Eastern Headquarter of the Self-Defense Force in Ichigaya.
Jan.16 Sekigun-ha held a rally for uprising in Tokyo.
Feb.7 Sekigun-ha held a rally for uprising in Osaka.
Mar.31 Nine members of Sekigun-ha hijacked a passenger JAL plane and went to North Korea.
Jun. The second term Bund split vis-à-vis the militarist line debate: Jyokyo-ha [the Situation faction] and Hanki-ha [the Rebel Flag faction].
Jul.7 The Oversea Chinese Youth Struggle Committee [Ka-sei-to] made a statement criticizing the Japanese New Lefts that they exploited the issues of immigration law for their own agenda, on the 33rd anniversary of the Marco Polo Bridge Affair; in response the New left Sects self-criticized.
Aug.4 Toshio Ebihara, a student of Tokyo Educational University [Tokyo Kyoiku Daigaku] and also a member of Kaku-maru-ha, was lynched to death by the members of Chukaku-ha in Hosei University. It was the first victim of the intra-sects violence [uchi-geba].
Dec.18 Another militant group, The Left Faction of the Japanese Communist Party, the Joint Struggle Committee against the Japan-US Security Treaty of Keihin Area [Keihin-anpo-kyo-to], attacked a police station of Kami Akatsuka in Tokyo in order to capture guns; one of them was shot to death and two were heavily injured.

1971
Jul. The US President, Richard Nixon, suddenly visited the People’s Republic of China. In the next month, he announced a series of dollar protection policy; the age of floating exchange rate system arrived.
Oct. The People’s Republic of China attained the right of representation in the UN, and the Republic of China withdrew from it.
Dec. The revaluation of Japanese yen, to 307 per dollar.
Feb. The secretary general of the central committee of Sekigun-ha, Fusako Shigenobu, and a member of the committee, Tsuyoshi Okudaira, went to Palestine in order to establish a joint struggle organ with the PFLP. In the beginning, this group called themselves Arab Red Army [Arab Sekigun], and later Japan Red Army [Nihon Seikigun].
Feb.17 Keihin-anpo-kyo-to attacked again a gun shop in Maoka City in Tochigi Prefecture and rubbed guns and bullets.
Feb.22 The government executed the first forcible administrative acts for the construction of Narita Airport; four hundred eighty seven activists were arrested and seven hundred were injured.
Apr.16 The Metropolitan Police discovered that RG (a militarist faction of Bund), Sekigun, and Keihin-Anpo had organized the United Revolutionary Front [Toitsu-kakumei-sensen].
Jun.17 Amidst the rally for blocking the US/Japan Agreement about Returning Okinawa to Japan, taking place in Meiji park in Tokyo, with participation of nation-wide groups, Sekigun-ha pitched a steel pipe bomb [tetsu-paipu bakudan] at police squad: thirty seven police men were injured.
Jul.15 Sekigun-ha and Keihin-anpo-kyo-to joined to form the United Red Army [Rengo Sekigun].
Aug.21 Members of Red Guard [Sekiei-tai] entered the Asaka Base (in Saitama Prefecture) of the Ground Self-Defense Force, and killed an official; they also stole armbands et al. Nine people, including Ryoji Kikui, were arrested as suspects; later on, a former tutor of Kyoto University, Nobuhiro Takemoto (a.k.a. Osamu Takita), was arrested as an accomplice.
Sep.16 The second forcible administrative acts for the construction of Narita Airport took place: amidst the crash between the group of student activists and the riot police, at the crossroad of Higashi Mine, three police men were killed by Molotov cocktails and wooden staff; 375 activists were arrested.
Sep.30 A documentary/manifest film, “Red Army/PFLP--The Manifest for the World War”, was first shown in Tokyo.
Oct.19 Three members of the Okinawa Youth League [Okinawa Seinen Domei] broke into the House of Representatives and set off firecrackers, when the Prime Minister Eisaku Sato began to speak about the Okinawa related issue during his general-policy speech.
Nov.10 In Okinawa, a general strike of unprecedented scale occurred; in correspondence to this, there were many rallies across the main land Japan.
Nov.17 At the House of Representatives, the LDP steamrollered the US/Japan Agreement about Returning Okinawa to Japan. Against this, all the New Left factions gathered for rallies in various locations of Tokyo, including Hibiya Park, where a violent crash between the demonstrators and the riot police caused the burnt-down of a famous restaurant Matsumoto-ro.
Dec.20 A big riot broke out in Koza City in Okinawa.
Dec.24 In the police stand in Shinjuku Tokyo, a bomb set in a Christmas tree exploded; seven people, including a policeman and passers-by, were severely injured.

1972
Feb. Nixon and Zhou Enlai had a talk in Beijing.
May.15 Okinawa was ‘returned’ to Japan with the US bases intact.
Around this time, due to the construction boom, the intervention of Yakuza organizations (as labor broker) into Sanya and Kamagasaki intensified. Workers suffered from the violence and kickback. The organization to protect workers from Yakuza brokers, Gen-to-I, was established in Sanya.
Feb.17 Two leaders of Rengo Sekigun, Tsuneo Mori and Yoko Nagata, were arrested near their hideout in Myogi Mountain in Gunma Prefecture.
Feb.19 In Karuizawa in Nagano Prefecture, not so far from Myogi Moutain, other five members of Rengo Sekigun held a mountain hotel (Asama San-so), taking superintending husband and wise as hostages. A gunfight broke off with police squad, which lasted ten days. All of the five were arrested, and the hostages were rescued. During the fight, two policemen were killed; twenty three were injured.
Mar.7 In several places including the hideout in Myogi Mountain, twelve dead bodies of Rengo Sekigun members were found. They were all lynched to death by other members. It shocked the whole nation, including the lefts.
May.28 A riot in Kamagasaki occurred which was caused by the intervention of a Yakuza broker, Suzuki-gumi.
May.30 At the Lidda Airport of Tel Aviv in Israel, three members of Nihon Sekigun arrived via a flight of Air France, and, according to the claim, began to attack people with automatic rifles and hand grenades; twenty four people were killed, and more than eighty people were injured. Two Nihon Sekigun members, Tsuyoshi Okudaira and Yasuyuki Yasuda, were killed, and Kozo Okamoto was arrested, and sentenced a life imprisonment in the military court of Israel.
Nov.9 Kaku-maru-ha killed a student of Waseda University, Daizaburo Kawaguchi, by lynching, claiming him to be a member of Chukaku-ha, and left his body in front of Tokyo University Hospital. This opened a long bloody strife between the two sects.

1973
Jan. In Paris, the peace agreement in Vietnam was signed.
Apr.27 The Watergate Affair developed into a scandal.
Oct.17 The first oil shock occurred by OPEC’s raise of oil price.
Feb. The Japanese yen adopted the floating exchange rate system.
Jan.1 The arrested leader of Rengo Sekigun, Tsuneo Mori, killed himself by hanging in his cell of the Tokyo Prison.
Jul.20 A member of Nihon Sekigun, Osamu Maruoka, and four Palestinian guerrillas hijacked a Japan Airline flight from Paris to Tokyo, released the hostages at the Bengaji Airport in Libya after flying around various countries, and finally exploded the airplane.
Sep.11 A riot in Sanya.
Oct. The Marxist Youth League [maru-sei-do] was founded.

1974
Feb. Pakistan acknowledged the state of Bangladesh.
Jan.31 Two members of Nihon Sekigun, one of whom is identified as Haruo Wako, and two Palestinian guerrillas exploded an oil tank in the Schell oil refinery in Singapore.
Feb.6 Five Palestinian guerrillas held a Japanese Embassy in Kuwait, demanding Japanese government to release Wako et al. The government agreed and sent an airplane to Kuwait and took all the nine members to South Yemen.
Aug.14 The East Asia Anti-Japan Armed Front [Higashi Asia Han-nichi Buso Sensen] attempted to explode the train the Emperor Hirohito was riding over Arakawa Bridge in Tokyo, but it failed.
Aug.30 Higashi Asia Han-nichi Buso Sensen exploded the faÁade of Mitsubishi heavy Industry’s office building in Marunouchi Tokyo; eight people were killed, three hundred eighty five injured.
Sep.13 Three members of Nihon Sekigun, including Haruo Wako, held French Embassy in Hague, Netherlands, demanding the release of Yoshiaki Yamada, who had been arrested in July in Paris. The demand was accepted.
Oct.14 Han-nichi Buso Sensen exploded the office building of Mitsui Products in Nishi Shinbashi, Tokyo.
Nov.25 Han-nichi Buso Sensen exploded the Central Laboratory of Teijin [Teijin Chuo Kenkyu Jo].
Dec.10 Han-nichi Buso Sensen exploded the office building of Taisei Construction in Ginza Tokyo.
Dec.23 Han-nichi Buso Sensen exploded the storehouse of Kashima Construction in Koto Ward Tokyo.

1975
Apr.30 The liberation of Saigon.
Jul. The Okinawa Marine Exposition took place.
Feb.28 Han-nichi Buso Sensen exploded the headquarter of Hazama-gumi Construction in Kita Aoyama, Tokyo.
Mar.14 Kaku-maru-ha killed the leader of Chukaku-ha, Nobuaki Honda, in his apartment in Kawaguchi City in Saitama Prefecture.
Apr.19 Han-nichi Buso Sensen exploded the Research Institute of Korean Industry and Economy in Ginza Tokyo, and then, the building of Oriental Metal in Amagasaki in Hyogo Prefecture.
Apr.28 Han-nichi Buso Sensen exploded a workings of Hazama-gumi Construction in Ichikawa City in Chiba Prefecture.
May.4 Han-nichi Buso Sensen exploded Hazama-gumi’s construction site of a bridge over the Edo River in Tokyo.
May.19 The Metropolitan Police arrested eight members of Han-nichi Buso Sensen, including Norio Masaaki and Masashi Daidoji; during the interrogation, a member, Kazu Saito, committed suicide by taking potassium cyanide. Meanwhile other two suspects were searched. But Higashi Asia Han-nichi Buso Sensen was not a group of people who knew each other: it was a movement initiated by one group and followed by those who shared the intention and called themselves by the same name, but, with different unit names such as The Ground Spiders of the Darkness [Yami-no-tsuchigumo] or The Pigs of the Earth [Daichi-no-buta].
Jun.25 A leader of the Joint Struggle Committee in Kamagasaki [Kama-kyo-to], Shuji Funamoto, burnt himself at the Kadena US Base in Okinawa, protesting Okinawa Marine Exposition, Crown prince’s visit to Okinawa, the existence of the US base, and so on.
Jul.19 The headquarter of Hokkaido Police was exploded; five people were killed. Han-nichi Buso Sensen announced its responsibility.
Aug.4 Six members of Nihon Sekigun, including Wako, held the American Embassy in Kuala Lumpur, Malaysia, demanding the release of two members of the group, who had been arrested in Stockholm in March, as well as some other prisoners. Japanese government released them calling it an extra-legal decision, and sent them to Kuala Lumpur.

1976
Feb.4 A committee in the US Senate revealed Lockheed’s bribery of some Japanese politicians concerning the sales of airplanes. It became a big scandal in Japan, which caused the resignations/arrests of many in power.
Sep. Mao Zedong died.
Jul.27 The former Prime Minister, Kakuei Tanaka, was arrested for acceptance of bribery and other corruption charges.
Jan.6 Saburo Kato, another activist who called himself Han-nichi Buso Sensen, set fire Heian Jingu in Kyoto; the main precinct was burnt. It was discovered that up until the November of 1972, he committed eight arsons of shrines and temples (including Nashigi Jinja, Tokyu Travel Agency, Jinja Honcho, Higashi Hongan-ji, etc.) and an explosion.
Mar.2 Hokkaido Government Office was exploded; two were killed, seventy four were injured. Han-nichi Buso Sensen announced its responsibility. Katsuhisa Ohmori was arrested as a suspect.
Jul. The Kamagasaki Day-workers Union [Kama-nichi-ro] was founded.

1977
Mar. The Communist Parties of France, Spain, and Italy declared their line of Euro-communism in distinction from that of the Soviet Union.
Aug. The declaration of the end of the Cultural Revolution in China.
Jan. The Sanya Joint Labor Union [San-to-ro] was founded.
Feb.11 Kaku-maru-ha attacked and killed the secretary general of Kaiho-ha, Hajime Nakahara, near Toride Station, Ibaraki Prefecture.
Sep.28 Five members of Nihon Sekigun, including Osamu Maruoka, hijacked a Japan Airline flight from Paris to Tokyo, demanding ransom of six million dollars and release of comrades held in Japan, including Junzo Okudaira, who had been arrested in Jordan in June and repatriated to Japan. In Dacca Airport in Bangladesh, they received the money and six prisoners; after flying around six days, they released the whole hostages in Algeria.

1978
Aug.12 The Japan-China Peace Treaty was signed.
May. Narita New Tokyo International Airport was opened.
Mar.26 Four days before the inauguration of Narita Airport, a guerrilla troop, centered around The Fourth International, sneaked into the Airport via the drainage way, and destroyed the system of the control tower. This delayed the inauguration of the airport for two months.
May.20 On the day of the inauguration, Chukaku-ha cut the communication cables used for the Tokyo area flight control, in several locations in Tokorozawa City, Saitama Prefecture. This disorganized the flight schedule.

1979
Jan. The US broke off relations with the Republic of China.
Feb. The China vs. Vietnam war began.
Dec. The Soviet Union invaded Afghanistan.
Jun. The convention of naming the era by the name of the Emperor [gengo-ho] was legislated.
Mar. The Red Army faction (of Bund) was split; the former chairman, Takaya Shiomi, established the Japan Institute of Social Science (for Marx/Leninism and Maoism).
Nov.2 The secretary general of the Anti-Narita Air Port Alliance, Issaku Tomura, died.