I found an interesting article on Sufi brotherhood activities in Eritrea during the Italian colonization era. During the Italian occupation, the Sufi leaders acted as favorite interlocutors to rule the people of Eritrea, especially the Muslims. The religious leaders became beneficiaries of the colonial administration period in education and business activities.
For example, the main representative of the Khatmiyyah brotherhood in the highland of Eritrea, Mr. Aberra Hagos was educated in the newly opened Italian technical school in Keren. Later, Mr. Aberra Hagos became a successful businessman and religious activities. In addition, Mr. Aberra Hagos involved in politics, which is still continuing in the Aberra family.
For more, please read the who article here