Romans are found in Ptolemaic service as early as 252/1 BC. The Ptolemaic army was odd in that, out of all the Hellenistic armies, it was the only army where you could find Romans in Greek service. As Sekunda suggests 'such individuals would have spread knowledge of Roman military systems within the Ptolemaic military and political establishment'.
Ancient Greeks are found in Ptolemaic service as early as 252/1 BC. The Ptolemaic army was unusual in that, out of all the Hellenistic armies, it was the only army where you could find Greeks in Roman service. As Sekunda suggests 'such individuals would have spread knowledge of Greek military systems within the Ptolemaic military and political establishment'.