While the emergence and trajectories of protest movements may be responsive to external pressures and political opportunities, decisions about frames and tactics and the evolution of particular repertoires of protest rituals are also the product of internal movement processes. In this session the panellists will examine the negotiation that takes place within a range of radical political movements and the implications of this for the trajectories of the groups in question, their interactions with the political ‘mainstream’ and for the lived experience of those who participate in these groups. Key areas of focus concern the negotiation of movement tactics/strategy and the formation of political alliances.