<Tr> <Td_colspan="2"> Today part of </Td> <Td> <Ul> <Li> Israel </Li> <Li> Jordan </Li> <Li> Lebanon </Li> <Li> Palestine </Li> <Li> Syria </Li> <Li> Turkey </Li> </Ul> </Td> </Tr> <Ul> <Li> Israel </Li> <Li> Jordan </Li> <Li> Lebanon </Li> <Li> Palestine </Li> <Li> Syria </Li> <Li> Turkey </Li> </Ul> <P> Syria Palaestina was a Roman province between 135 and about 390 . It was established by the merger of Roman Syria and Roman Judaea, following the defeat of the Bar Kokhba revolt in AD 135 . Shortly after 193, the northern regions were split off as Syria Coele in the north and Phoenice in the south, and the province Syria Palaestina was reduced to Judea . The earliest numismatic evidence for the name Syria Palaestina comes from the period of emperor Marcus Aurelius . </P> <P> Syria was an early Roman province, annexed to the Roman Republic in 64 BC by Pompey in the Third Mithridatic War, following the defeat of Armenian King Tigranes the Great . Following the partition of the Herodian kingdom into tetrarchies in 6 AD, it was gradually absorbed into Roman provinces, with Roman Syria annexing Iturea and Trachonitis . </P>

What was the primary role of syria–palestine