It's a scene that's become wearily repetitive in the eastern part of the Democratic Republic of Congo: An uprising drives out poorly trained government troops, creating havoc and sending large numbers of refugees fleeing for their lives.
This time the rebel group is M23, or March 23. Their revolt began this spring, and earlier this week they took Goma, an important town on the country's eastern border, just across Lake Kivu from Rwanda. The rebels then proceeded to take the next town over, Sake.
Sierra Leone's "blood diamonds" helped fuel atrocities in the impoverished West African nation in the 1990s. The war has now been over for a decade, and the country's most valuable resource is no longer known as the product of a conflict. But it remains a contentious issue.