<Tr> <Th_colspan="3"> Commissioned officers </Th> </Tr> <Tr> <Td> Admiral of the fleet </Td> <Td> Field marshal or General of the Army </Td> <Td> Marshal of the air force </Td> </Tr> <Tr> <Td> Admiral </Td> <Td> General </Td> <Td> Air chief marshal </Td> </Tr> <Tr> <Td> Vice admiral </Td> <Td> Lieutenant general </Td> <Td> Air marshal </Td> </Tr>

What rank is an ensign in the navy