An extreme left-wing terrorist organization based in Italy, which from the early 1970s was responsible for carrying out kidnappings, murders, and acts of sabotage.
红色旅（意大利极左翼恐怖组织，20世纪70年代初起从事绑架、谋杀和破坏等活动）
Definition of Red Brigades in US English:
Red Brigades
proper noun
An extreme left-wing terrorist organization based in Italy, which from the early 1970s was responsible for carrying out kidnappings, murders, and acts of sabotage.