Note 38 — Chapter XXIII · —Alexander wars against the Aspasians

The hypaspists, so called because they carried the round shield called aspis, while the hoplites carried the oblong shield called hoplon, formed a body of about 3000 men at the outset of the war, but were perhaps augmented to double that number during its progress. They were not so heavily armed as the hoplites, and were therefore more rapid in their movements. The foot companions were another distinguished corps of guards. The Agrianians, who made excellent light-armed troops, were a Paionian people whose country adjoined the sources of the river Strymôn.