The leader of the rebels who captured two key cities in eastern Congo says international sanctions and the planned minerals deal that the country has offered the U.S. will not stop the fighting in the

Despite international sanctions and Congolese government efforts to secure a mineral partnership with the US, Congo's M23 rebels, led by Corneille Nangaa, continue their fight for control in eastern Congo.

A de facto ceasefire between Congolese forces and Rwandan-backed rebels in the eastern Congo town of Walikale appeared to have broken down on Monday, with the rebels going back on a pledge to withdraw and accusing the army of violating its own commitments.