A Congolese army officer arrived in the village of Kafwaya in June and warned residents not to trespass on a major Chinese copper and cobalt mine next door. As night fell about a week later, the soldiers moved in. "They didn’t say anything to anyone," said Fabien Ilunga, an official in Kafwaya, which is home to thousands of miners eking out a living by illegally exploiting the nearby mineral resources. "The army started to burn down the tarpaulin houses."