Military structure of the FARC–EP
The military structure of the Fuerzas Armadas Revolucionarias de Colombia – Ejército del Pueblo ("Revolutionary Armed Forces of Colombia – People's Army", or FARC–EP), formally began to be developed after the middle of 1964, when the Colombian Army occupied the town of Marquetalia. The Colombian Army claimed they were cleaning the last remnants of "bandolerism", a mob justice system for displacement of adversaries, developed in the 10-year struggle for power between the Conservative and Liberal parties, during La Violencia (The Violence).
Source: Wikipedia — Military structure of the FARC–EP (CC BY-SA 4.0)