GOMA, DR Congo — Former Democratic Republic of Congo (DRC) president Joseph Kabila has launched a new political-military coalition incorporating the M23 rebels, in a move that threatens to complicate efforts to end the conflict in the country’s mineral-rich east. The Front for the Refoundation of the Nation (FRN), announced on Monday in the eastern city of Goma, brings together groups previously aligned under the Alliance Fleuve Congo (AFC), which includes the M23 rebellion fighting President Félix Tshisekedi’s government. According to the Associated Press (AP), former AFC leader Corneille Nangaa will serve as one of the coalition’s two vice-presidents. Coalition adviser Claude Ibalanky said the movement aimed to unite opposition forces to end what it described as tyranny, declaring...