Ethiopia's Oromo people gather to celebrate the return of the formerly banned anti-government group the Oromo Liberation Front (OLF)  in Addis Ababa, on September 15, 2018. AFP
Ethiopia's Oromo people gather to celebrate the return of the formerly banned anti-government group the Oromo Liberation Front (OLF)  in Addis Ababa, on September 15, 2018. AFP

Hundreds of thousands in Ethiopia welcome once-banned group