Algeria
Islam is the predominant religion in Algeria, with its adherents, mostly Sunnis, accounting for 99% of the population according to a 2012 CIA World Factbook estimate, and 97.9% according to Pew Research in 2010. There are about 150,000 Ibadis in the M'zab Valley in the region of Ghardaia.
Muslim Brotherhood
The Muslim Brotherhood reached Algeria during the later years of the French colonial presence in the country (1830–1962). Sheikh Ahmad Sahnoun led the organization in Algeria between 1953 and 1954 during the French colonialism. Brotherhood members and sympathizers took part in the uprising against France in 1954–1962, but the movement was marginalized during the largely secular FLN one-party rule which was installed at independence in 1962. It remained unofficially active, sometimes protesting the government and calling for increased Islamization and Arabization of the country's politics.