For over a year, the town of Beni in eastern Congo has been at the center of the second-largest Ebola outbreak in history. Efforts to fight the virus’ spread have been hampered by growing mistrust of the international response, which has fueled violent attacks against health workers.

At least three students were killed this week in the latest episodes of ethnic violence in Ethiopia. Prime Minister Abiy Ahmed has been trying to unite the country’s ethnic groups behind a shared political party and a national identity. If he fails, it could portend broader violence across the country.