Japan Air Lines Flight 351 was a scheduled passenger flight from Tokyo Haneda Airport to Fukuoka that was hijacked by members of the Red Army Faction of the Japan Communist League on March 31, 1970, in an incident usually referred to in Japanese as the Yodogo Hijacking Incident .

The New Left in Japan refers to a diverse array of 1960s Japanese leftist movements that, like their counterparts in the Western New Left, adopted a more radical political stance compared to the established "Old Left," which in the case of Japan was emblematized by the Japanese Communist Party and Japan Socialist Party. After emerging in the lead-up to the 1960 Anpo protests against the U.S.-Japan Security Treaty, the movement grew and diversified before climaxing with the Zenkyōtō movement which barricaded dozens of Japanese universities in 1968–1969. Much like its counterparts in the West, in the 1970s, the Japanese New Left became known for violent internal splits and terrorism, which caused the movement's influence to wane.