Colonial Crisis and Spanish Diplomacy in the Caribbean During the Sexenio Revolucionario, 1868–1874

During the nineteenth century, the Caribbean was the stage for a complex geopolitical confrontation involving the United States, Spain, Great Britain, and France. The precarious balance of powers in that region was upset by the outbreak of the Cuban crisis in 1868 and by the dawn of the period of severe instability in Spain following the overthrow of Isabel II and the onset of the reformist period characterised by the Sexenio Revolucionario. The Cuban crisis strongly constrained the foreign policy of the new regime in Spain and turned the Caribbean Basin into a zone of vital interest for Spanish diplomacy.