Revolutionary Organization 17 November
Revolutionary Organization 17 November (Greek: Επαναστατική Οργάνωση 17 Νοέμβρη, Epanastatiki Organosi dekaefta Noemvri), also known as 17N or the 17 November Group, was a Greek Marxist–Leninist urban guerrilla organization. It is named after the Athens Polytechnic uprising.
Source: Wikipedia — Revolutionary Organization 17 November (CC BY-SA 4.0)