Rebels backed by Rwanda are seizing huge tracts of the Democratic Republic of Congo. The rebels, known as M23, say they are protecting ethnic Tutsis, the minority group massacred in a 1994 genocide.

The U.N. says Rwanda-backed rebels are expanding their presence in eastern Congo after capturing the region’s major city.

The U.N. voices concern over alleged atrocities as Rwandan-backed rebels reportedly advance after seizing the city of Goma in the Democratic Republic of Congo.

Goma natives Justin Kabumba and Moses Sawasawa brought their deeply personal expertise to bear when Rwandan-backed M23 rebels ...