The Congo has long been where the world goes to dig up what it needs next: copper and uranium under Belgian rule, and cobalt and coltan today. The episode traces the arc from the colonial mining giant Union Minière to modern Western and Chinese operators, and describes hand-dug cobalt, including by children, and militias financing war from mine sites.
Child-labor figures are widely cited but hard to verify, and observers dispute whether conflict-minerals regulation worked. Relative Western and Chinese responsibility is contested, and eastern violence has ethnic, land and regional causes beyond minerals.