<Table> <Tr> <Td> </Td> </Tr> <Tr> <Td> Part of a series on the </Td> </Tr> <Tr> <Th> Military of ancient Rome 753 BC--AD 476 </Th> </Tr> <Tr> <Th> Structural history </Th> </Tr> <Tr> <Td> <Table> <Tr> <Th> Army </Th> </Tr> <Tr> <Td> <Ul> <Li> Unit types and ranks </Li> <Li> Legions </Li> </Ul> <Ul> <Li> Auxilia </Li> <Li> Generals </Li> </Ul> </Td> </Tr> <Tr> <Th> Navy </Th> </Tr> <Tr> <Td> <Ul> <Li> Fleets </Li> <Li> Admirals </Li> </Ul> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th> Campaign history </Th> </Tr> <Tr> <Td> <Ul> <Li> Wars and battles </Li> </Ul> <Ul> <Li> Decorations and punishments </Li> </Ul> </Td> </Tr> <Tr> <Th> Technological history </Th> </Tr> <Tr> <Td> <Table> <Tr> <Th> Military engineering </Th> </Tr> <Tr> <Td> <Ul> <Li> Castra </Li> <Li> Siege engines </Li> </Ul> <Ul> <Li> Triumphal arches </Li> <Li> Roads </Li> </Ul> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th> Political history </Th> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Th> Strategy and tactics </Th> </Tr> <Tr> <Td> <Table> <Tr> <Td> <Ul> <Li> Infantry tactics </Li> </Ul> </Td> </Tr> <Tr> <Th> Frontiers and fortifications </Th> </Tr> <Tr> <Td> <Ul> <Li> Limes </Li> </Ul> <Ul> <Li> Limes Britannicus </Li> <Li> Antonine Wall </Li> <Li> Hadrian's Wall </Li> <Li> Saxon Shore </Li> </Ul> <Ul> <Li> Limes Germanicus </Li> <Li> Alb Limes </Li> <Li> Lauter Valley Limes </Li> <Li> Lower Germanic Limes </Li> <Li> Main Limes </Li> <Li> Neckar - Odenwald Limes </Li> <Li> Upper Germanic - Rhaetian Limes </Li> <Li> Wetterau Limes </Li> </Ul> <Ul> <Li> Danube--Iller--Rhine Limes </Li> </Ul> <Ul> <Li> Norican Limes </Li> </Ul> <Ul> <Li> Claustra Alpium Iuliarum </Li> </Ul> <Ul> <Li> Pannonian Limes </Li> </Ul> <Ul> <Li> Limes Alutanus </Li> <Li> Limes Moesiae </Li> <Li> Trajan's Wall </Li> <Li> Anastasian Wall </Li> <Li> Limes Sarmatiae </Li> </Ul> <Ul> <Li> Limes Arabicus </Li> <Li> Limes Tripolitanus </Li> <Li> Limes Mauretaniae </Li> </Ul> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> Military of ancient Rome portal </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table> <Tr> <Td> Part of a series on the </Td> </Tr> <Tr> <Th> Military of ancient Rome 753 BC--AD 476 </Th> </Tr> <Tr> <Th> Structural history </Th> </Tr>

When did the romans become masters of britain