ABSTRACT
This chapter discusses several aspects of Celtic nationalism in the years 1910-1966. This period is characterized by events of major significance for the Celtic lands. The outbreak of World War One, the secession of southern Ireland, and the spatially skewed effects of the Depression all had implications for the continued incorporation of the Celtic regions in the United Kingdom. World War Two resulted in a temporary halt to political argument about national solidarity. In the post-war years there has been a trend towards political integration in all the British regions, with the exception of Northern Ireland. The chapter focuses on several issues: why did the twenty-six counties of Ireland secede from the United Kingdom? Why did Welsh and Scottish nationalism decline in the early twentieth-century? What can account for the relatively rapid changes in support for separatist political parties in Wales and Scotland in the face of evidence indicating that these regions have been politically malintegrated throughout the whole period?
