Jay M. Winter 
Socialism and the Challenge of War (RLE The First World War) [PDF ebook] 
Ideas and Politics in Britain, 1912-18

The First World War marks a crucial period in the history of the socialist wing of the British labour movement. This book is an account of the development of the political ideas and activities of some of the most influential British socialist thinkers of that time: Beatrice and Sidney Webb, R. H. Tawney and G. D. H. Cole. The first part of the book examines the state of the Labour movement and of socialist ideas on the eve of the conflict, then turns to the central question of the impact of the War on the dissemination of British socialist ideas.