England's recent lurch to the right appears to be but one example of the nationalist wave sweeping across the world, yet as acclaimed Irish critic Fintan O'Toole suggests in The Politics of Pain, it is, in reality, a phenomenon rooted in World War II. We must look not to the vagaries of the European Union but, instead, far back to the end of the British empire, if we hope to understand our most fraternal ally--and the royal mess in which the British...