The Treasury Department accused Rwanda of undermining a U.S.-brokered peace agreement by supporting a rebel group in the eastern Democratic Republic of Congo.
Soldiers from the M23 rebel group in Goma, the Democratic Republic of Congo, in January. The United States has accused Rwanda of continuing to support the group.
The injury of a former Green Beret and death of an elite soldier from New Zealand have highlighted the Blackwater founder’s growing role in one of Africa’s most intractable conflicts.