By the peaceful shore of Lake Kivu in Gisenyi, Rwanda, this month.Credit... Supported by By Elian Peltier Photographs by Guerchom Ndebo Elian Peltier and Guerchom Ndebo reported from both Goma ...

ON one side of the lake, lovers glide on canoes, friends ride jet skis and families pose for pictures in the hazy sunset.

Rwanda appears to be betting on its reputation as a key security partner and sports destination to minimize any backlash to its involvement in the war.

Rwanda and Burundi. At this stage, the U.N. doesn’t know the M23 agenda, the intention of its backers or how far they will go and why, said Huang, the Great Lakes U.N. envoy. “This situation ...