This book provides a comparative history of the domestic and international nature of Spain's First Carlist War (1833-40) and the Spanish Civil War (1936-39), as well as the impact of both conflicts. The book demonstrates how and why Spain's struggle for liberty was won in the 1830s only for it to be lost one hundred years later. It shows how both civil wars were world wars in miniature, fought in part by foreign volunteers under the gaze and in the political consciousness of the outside world.