The world’s most notorious terrorist group is making another worrying expansion in Africa. It poses massive implications for the international community.

On Nov. 17, terrorists affiliated with the Central African branch of the Islamic State claimed responsibility for two suicide bombings in the country’s capital, Kampala. These attacks killed three people and wounded at least 36. Days later, Ugandan officials announced that they had killed five suspects and arrested 21 others believed to be linked to the atrocities. The twin bombings followed an Oct. 23 attack targeting a Kampala cafe and another attack two days later on a bus in a nearby village.