
WAR AND SIEGECRAFT 357
throwers and light cavalry (frequently of local origin) and, most
important, immediately to the right of the hypaspists, the heavy cavalry
of 'Companions'
(hetairoi)
which gloried in the title of 'royal' and
which, fictitiously at least, was described as Macedonian. To these
' Companions', who were equipped with metal helmets and breastplates,
spears (shorter than those of the men of the phalanx), and a kind of
scimitar, there usually fell the task of advancing in triangular formations
to breach the enemy
lines.
Positioned in front or on the
flanks
would also
be a number of special corps, a legacy of Eastern practice or devised by
the fertile imagination of military theorists. These might include
chariots of the Achaemenid type, with cutting blades attached to the
wheels; camels carrying bowmen, from Arabia; soldiers equipped with
oblong-shaped shields of Galatian origin; armoured horses and riders
(cataphracts) on the Parthian model, and all kinds of mounted bowmen
and javelin throwers often known by pseudo-ethnic names (such as the
'Tarentines'); and, most important of all, the combat elephants which
were procured at great expense from India or the heart of Africa (Plates
vol.,
pi. 110). These were used in their hundreds against enemy cavalry
at the end of the fourth century
B.C.
(especially in the Seleucid kingdom)
and thereafter with greater moderation once means had been found to
diminish their effectiveness. Finally, behind the battle lines, with a
purely defensive role, a number of reserve troops were positioned (used
systematically for the first time, apparently, by Eumenes of Cardia) and
the mass of non-combatants were encamped, the latter being the prime
objective of the enemy when they broke through. The role of
commander-in-chief (usually the king in person) consisted in co-
ordinating the tactical deployment of the men who, in a somewhat
imprecise hierarchy, were placed under his orders. To the great regret of
military theorists such as Philo of Byzantium and Polybius, however, it
was not long before the commander felt himself obliged to prove his
'valour' by putting himself personally at the head of his elite troops to
make the decisive charge
—
although he would thereby often lose control
of the subsequent course of the battle.
Nevertheless, the Hellenistic monarchs could not have achieved with
such speed the conquests they did, had they not acquired the means to
gain possession of fortified towns with the minimum of delay. On the
basis of the advances already made by Dionysius of Syracuse and Philip
and Alexander of Macedonia, siegecraft made spectacular progress in
the fourth century, deeply impressing contemporaries and continu-
ing to be regarded as a model for many years to
come.
The credit for this
must go directly to the engineers who, either as professionals or for
circumstantial reasons, became specialists in the construction of siege
engines. Among these, for example, were the Athenian Epimachus who
Cambridge Histories Online © Cambridge University Press, 2008