Tensions are spiking once again in the chronically turbulent eastern Democratic Republic of the Congo (DRC). The M23 rebel movement – widely thought to be long dead – has dramatically resurrected. And DRC President Félix Tshisekedi has accused Rwandan President Paul Kagame of again backing it with military support. Tshisekedi has cancelled all RwandAir flights to DRC as well as trade and other commercial agreements. Kagame denies everything, suggesting that Tshisekedi resolve his own ‘internal’ problems. Rwanda has in turn accused DRC of firing rockets into Rwanda. The risk of open war looms.