The New Left (新左翼, shin-sayoku) in Japan refers to a 1960s Japanese movement that adopted the radical political thought of the Western New Left, breaking from the established Old Left of the Japanese Communist Party and Japan Socialist Party. In the 1970s the Japanese New Left became known for violent internal splits and terrorism. This caused the movement's influence to wane, although it continued to develop new political ideologies such as Anti-Japaneseism (反日亡国論, han'nichi-bokoku-ron).