<Table> <Tr> <Th> History of U.S. expansion and influence </Th> </Tr> <Tr> <Td> <Ul> <Li> Foreign policy </Li> <Li> Military history </Li> <Li> Timeline of military operations </Li> <Li> List of wars </Li> <Li> United States military deployments </Li> <Li> List of bases </Li> <Li> Manifest destiny </Li> <Li> Non-interventionism </Li> <Li> Foreign interventions </Li> <Li> Pax Americana </Li> <Li> America's Backyard </Li> <Li> Territorial acquisitions </Li> <Li> United States involvement in regime change </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th> History of U.S. expansion and influence </Th> </Tr> <Tr> <Td> <Ul> <Li> Foreign policy </Li> <Li> Military history </Li> <Li> Timeline of military operations </Li> <Li> List of wars </Li> <Li> United States military deployments </Li> <Li> List of bases </Li> <Li> Manifest destiny </Li> <Li> Non-interventionism </Li> <Li> Foreign interventions </Li> <Li> Pax Americana </Li> <Li> America's Backyard </Li> <Li> Territorial acquisitions </Li> <Li> United States involvement in regime change </Li> </Ul> </Td> </Tr> <Ul> <Li> Foreign policy </Li> <Li> Military history </Li> <Li> Timeline of military operations </Li> <Li> List of wars </Li> <Li> United States military deployments </Li> <Li> List of bases </Li> <Li> Manifest destiny </Li> <Li> Non-interventionism </Li> <Li> Foreign interventions </Li> <Li> Pax Americana </Li> <Li> America's Backyard </Li> <Li> Territorial acquisitions </Li> <Li> United States involvement in regime change </Li> </Ul>

In what ways did the united states gain territory in 1800s