Larger parts of Goma is now under the control of M23. This violence could have been niped at the bud much later to avoid the catastrophic footprints it's leaving. The marginalization of the Tutsi people is what led to this problem in Congo DR. Nigeria should learn, too. The Igbos have been gravely marginalised, too and this led to Biafran agitation, till today that marginalization is still present.
“Rebels Backed by Rwanda Announce Capture of Key City in Eastern Congo - The New York Times”
“Rebels Backed by Rwanda Announce Capture of Key City in Eastern Congo - The New York Times”