The allegations of Rwanda supporting M23 rebels in northern Kivu are very credible. It’s not only the panel of experts, it’s many independent organisations, including the International Crisis Group, who recently published a report on the subject and who point out the role of Rwanda in this crisis.
The involvement of Uganda seems to be more recent but is also credible. There have been allegations of Uganda supporting M23 since July 2012 but it seems more realistic that this support is more recent and is a consequence of the downsizing of Rwanda’s support for M23 after several countries imposed sanctions on Rwanda."
Marc-Andre Lagrange, Crisis Group’s Senior Analyst, Central Africa, on Rwandan and Ugandan support for M23 rebels in the Democratic Republic of Congo