Tarn even suggests that the Greek (known to the Indians as 'Yavanas') population in India may not have been as small as one would suppose, stating 'there may well have been many more Yavanas...than we should suppose; we may have to reckon with a considerable number of men, adventurers or mercenaries from the west'.The Hellenistic armies based their strength on the pike-bearing phalanx, the legacy of Philip II and Alexander the Great.