The United States has issued sanctions against a general for being a key contributor to the conflict in the east of the Democratic Republic of Congo.
General Muhindo Akili Mundos, an ally of President Joseph Kabila, was among three men sanctioned by the US.
He spent two years in charge of the Congolese army’s operations against a Ugandan rebel group, the Allied Democratic Forces (ADF).
The UN found during that period that General Mundos was involved in the killing of at least 400 civilians.
The US has also placed three rebel commanders on the sanctions list for recruiting child soldiers and committing human rights abuses.
The UN and France have taken similar action against the three men.