This book discusses the development of 'dissident' Irish republicanism and considers its impact on politics throughout Ireland since the 1980s. Based on a series of interviews with over ninety radical republican activists from the wide range of groups and currents which make up 'dissident' republicanism, the book provides an up-to-date assessment of the political significance and potential of the groups who continue to oppose the peace process and the Good Friday Agreement. It shows that the 'dissidents' are much more than traditionalist irreconcilables left behind by Gerry Adams' entry into the mainstream. Instead the book suggests that the dynamics and trajectory of 'dissident' republicanism are shaped more by contemporary forces than historical tradition and that by understanding the dissidents we can better understand the emerging forms of political challenge in an age of austerity and increasing political instability internationally.