According to the Roman historian
Dio Cassius, the Cantabri used
guerrilla warfare tactics, avoiding direct attacks on Roman forces because of their inferior numbers. Their better knowledge of the difficult and mountainous terrain allowed them to conduct quick surprise strikes with ranged weapons, with
ambushes followed by quick retreats, causing great damage to the Roman columns and supply lines. According to what remains from representations on coins and
Cantabrian stelae, the Cantabri were skilled in light arms.
Lucan referred to this when he wrote,
Cantaber exiguis et longis Teutonus armis (The Cantabrian with his short weapons and the
Teuton with his long ones). They were equipped with short
swords,
daggers, short
spears and
javelins,
lances, round or oval
shields of wood, and leather chest protection. They also used the
bipennis, a type of double-headed
battle axe specific to the peoples of northern Hispania. There is no proof of their use of
archery or
slings, although it is quite probable that they knew and used them. , along with the tribes that lived there, the neighboring peoples, towns and geographical features, according to classical sources. The Cantabrian also used
light cavalry, and some of their
tactics would be adopted by the Roman army. Examples include the
circulus cantabricus, a circular formation of javelin-throwing horsemen, and the
cantabricus impetus, a massive frontal attack against enemy lines with the goal of breaching them, as described by
Flavius Arrianus. The tenacity of the Cantabrian enemy was such that Augustus was obliged to deploy eight legions in the conflict: •
I Augusta •
II Augusta •
IV Macedonica •
V Alaudae (operated in Asturias) •
VI Victrix (operated in Asturias) •
IX Hispana •
X Gemina (operated in Asturias) •
XX Valeria Victrix as well as various auxiliary units: •
Ala Augusta • Ala
Parthorum • Ala II
Gallorum • Ala II
Thracum Victrix Civium Romanorum •
Cohors II
Gallorum • Cohors IV
Thracum Equitata These units totaled 50,000 soldiers (30,000 legionaries and 20,000 auxiliaries). The
Roman navy was also sent to the Cantabrian coast from
Gallia Aquitania. It was an important factor in the Roman victory, since it completed the encirclement of the Cantabri begun by the ground forces. It is calculated that, in total, the
Roman Army deployed 70,000 men, although these calculations vary amongst authors, because they used a figure of 5,000 men per legion. In reality, the figure should surpass 80,000 men counting auxiliaries since, through the reforms of
Gaius Marius, the legion had about 6,000 soldiers. However, in Augustus' time, although a legion was officially composed of 6,200 men, for various reasons, the number usually oscillated between 5,000 and 8,000. == Bellum Asturicum ==