Recent studies of industrial conflict during the First World War have challenged earlier interpretations of working-class politics in Britain. The debate has focussed on the events in west Scotland during the years when the legend of “Red Clydeside” was made. It is now commonplace to emphasise the limited progress of revolutionary politics and the presence of a powerful craft sectionalism in the industrial workforce. This essay discusses the recent research on workplace unrest, popular politics and the wartime state. Although the “new revisionism” provides an important corrective to earlier scholarship, there remain important questions which require a serious reappraisal of the forces behind the different forms of collective action which took place and their implications for the politics of socialism. It is argued that the struggles of skilled workers made an important contribution to the growth of Labour politics on the Clyde.