"This is a well-written, informative account that identifies a niche in the existing historiography. Beginning in the period leading up to Irish independence, it takes the reader through five decades of the evolving relationship between the Irish Free State / Éire and Britain, covering high politics and constitutional evolution alongside social and cultural change. Whilst different audiences will agree and disagree with elements of its conclusions, notions of citizenship, nationality and migration are particularly well addressed."Dr David Shiels, Former Archives By-Fellow, Churchill College, University of Cambridge"[a] careful and convincing study of the relationship between Britain and Ireland in the mid-twentieth century...The book...contains several useful chapters for scholars and students of modern British and Irish political, economic, social, and cultural history. Carr’s handling of this varied material is deft, maintaining both an empathetic standpoint and a wry tone." Dr Colm Murphy, Senior Lecturer in British Politics, Queen Mary University of London, (Journal of) Modern British History