CATATUMBO, COLOMBIA— Violent militias are at war over territory in this strip of land neighboring Venezuela, a key hub for coca-leaf cultivation and drug trafficking. State presence is scarce. Drone attacks and targeted killings are leaving civilians in the crossfire. In February, a Wall Street Journal video crew went to the heart of the conflict fueled by the cocaine trade and became the first journalists to visit a town after a lockdown enforced by armed militants was lifted. Chapters: 0:00 Colombia's deadly cocaine war 1:06 Clashes between offshoot groups of FARC 1:51 The cocaine boom 4:20 The supply chain 6:15 Victims of the war 8:03 Visiting a town trapped in a turf war 13:35 Government response #Colombia #Drugs #WSJ