War as the catalyst of nationalism, or, the demise of the Habsburg, Romanov and Ottoman empires

Nationalism is often singled out as the powerful force that brought about the collapse of the last great land empires of the 19th and early 20th centuries. We offer a different picture: nationalism was weak before 1914, with war being caused by the fears of the great powers rather than pressures from below; crucially war was less an opportunity for pre-existing nationalists to seize than a maelstrom that created new identities.