Colombians march for peace 150,000 people marched through the streets of Bogota on Tuesday to call for an end to Colombia's six decade long guerrilla conflict. Peace talks have been underway between the government and FARC guerrillas since November 2012, and the government hopes to start talks with another group, the ELN. 600,000 people are thought to have been killed over the last 50 years in a complex war that has involved the Colombian army, left-wing guerrillas, right-wing paramilitaries and drug traffickers. Images.