The rise to power of the Fethullah Gülen confraternity has transformed Turkey since the 90s. This spiritual movement has given rise to a vast media and financial empire, doubled by an imposing network of schools, universities and residences within Turkey, but also on a global scale. Scattered throughout all levels of social and political life, its members weigh heavily on government choices. Yet, the movement’s omnipotence is no longer compatible with the ambitions of its former ally Prime Minister Recep Tayyip Erdogan.