Cuba was of interest to both great britain and the united states because of its strategic position in the gulf of mexico. what situation prompted the british to suggest an anglo-american joint declaration against further european colonialism in the americas? a. the holy alliance backed a french invasion of spain to restore the bourbon monarchy. b. russia and austria sent a fleet of ships to cuba. c. the french and british agreed that france would stay out of cuba. d. mexico and colombia declared war against spanish cuba.