To truly understand what is happening in South and Central America and around the world a book written by Dawn Paley is very important. The book "Drug War Capitalism" put the finger right on what drives these wars.
I agree with Erika of Amnesty International, " "However," she added, "much of the horror Colombians have been forced to endure for decades has often not been directly linked to direct combat between the security forces and the FARC. Those working away from the spotlight, defending rights or protecting natural resources and territories from powerful economic interests continue to face harassment and deadly attacks. So the peace agreement in itself may do little to keep these activists safe. What they need is effective action to ensure those behind such attacks face proper justice."
Drug War Capitalism helps one to understand what is really going on.