Congo’s army said on Thursday it was hunting rebels deep into forests and mountains along the border with Rwanda and Uganda, the last insurgent hideouts after they were driven from towns they held during a 20-month rebellion. Ugandan mediators said talks had restarted on Wednesday in Kampala between the government and M23 rebels, but Kinshasa’s UN-backed army appears on the verge of defeating the most serious uprising to plague the country since the end of the last major war a decade ago.