Once again, a Nobel Peace laureate is presiding over an attack on its own citizens. Abiy Ahmed is waging a war against the powerful and defiant region of Tigray, forcing tens of thousands to flee the country and raising the spectre of a wider conflict in the restive Horn of Africa.

The Nobel committee’s pleas for peace have fallen on deaf ears, as the tanks roll in just one year after Ethiopia’s prime minister was handed the most prestigious prize of all.