<Tr> <Th> Governorate of Cuba (1511--1519) </Th> </Tr> <Tr> <Th> Viceroyalty of New Spain (1535--1821) </Th> </Tr> <Tr> <Th> Captaincy General of Cuba (1607--1898) </Th> </Tr> <Tr> <Td> <Ul> <Li> Cuban War of Independence </Li> <Li> Spanish--American War </Li> <Li> Treaty of Paris </Li> </Ul> </Td> </Tr>

Why did the us enter the spanish american war