Islamism, or political Islam, has been defined as the ideology that employs the precepts and principles of Islam as a tool for political action to realise an Islamic society and a state. The Muslim Brotherhood, set up in Egypt in 1928 with branches in several Arab countries, is the pioneering movement promoting this ideology. Later, in the 1970s and ’80s, the Islamist movements in several Arab countries were the principal source of opposition to the despotic political order. State authorities, however, struck fiercely against them, subjecting their adherents to execution, prolonged incarceration and exile. Confrontation between the Islamists and the armed forces has been the leitmotif of politics in several parts of the Arab world in the last 60 years.