Coming from a Nobel Peace Prize winner, Abiy Ahmed’s call for restraint and diplomacy to end the war in Ukraine might have attracted more attention if the Ethiopian prime minister hadn’t stained his laurels with the blood of his own people. Reports of hideous war crimes committed by his forces and those of his Eritrean allies against civilians in the rebel northern province of Tigray make a mockery of his appeals for nonviolence in other parts of the world.