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Title: Hastati  
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Subject: Military reserve, Battle of the Great Plains, Hastiliarius, List of Roman army unit types, Cohort (military unit)
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Hastati (singular: Hastatus) were a class of infantry in the armies of the early Roman Republic who originally fought as spearmen, and later as swordsmen. These soldiers were the staple unit after Rome threw off the Etruscan rule. They were originally some of the poorest men in the legion, and could afford only modest equipment—light chainmail and miscellaneous equipment. The Senate supplied their soldiers with only a short stabbing sword, the gladius and their distinctive squared shields. The Hastati soldier was typically equipped with these, and several soft iron tipped throwing spears called pila. This doubled their effectiveness, not only as a strong leading edge to their cohort, but also as a stand-alone missile troop. Later, the hastati contained the younger men rather than just the poorer, though most men of their age were relatively poor. Their usual position was the first battle line. They fought in a quincunx formation, supported by light troops. The enemy was allowed to penetrate the first battle line consisting of hastati, then the enemy would deal with the more hardened, seasoned soldiers, the principes. They were eventually done away with after the Marian reforms of 107 BC.

History and deployment

Hastati appear to have been remnants of the old third class of the army under the Etruscan kings when it was reformed by Marcus Furius Camillus.[1] The third class stood in some of the last few ranks of a very large phalanx were equipped in a similar manner to hastati, but more often than not were relegated to providing missile support to the higher classes rather than fighting themselves. It is probable that engagements with the Samnites and a crushing defeat at the hands of the Gallic warlord Brennus, who both used lots of smaller military units rather than a few very large ones, taught the Romans the importance of flexibility and the inadequacy of the phalanx on the rough, hilly ground of central Italy.[2][3]

Camillan system

By the 4th century BC the military the Romans had inherited from the Etruscans was still in use. Though its efficiency was doubtful, it proved effective against Rome's largely local adversaries. When Gauls invaded Etruria in 390 BC, the inhabitants requested help from Rome. The small contingent Rome sent to repel the Gallic invaders provoked a full-scale attack on Rome. The entire Roman army was destroyed at the Battle of the Allia in a crushing defeat that prompted reforms by Marcus Furius Camillus.[4] Under the new system, men were sorted into classes based on wealth; the hastati were the third poorest, with the rorarii being slightly poorer and the principes slightly wealthier.[5] Hastati were armed with short spears, or hastae, up to 1.8 metres (6 ft) long, from which the soldiers acquired their name.[6] They fought in quincunx formation, usually carrying scuta, large rectangular shields, and bronze helmets, often with a number of feathers fixed onto the top to increase stature. They wore light armour, the most common form being small breastplates, called "heart protectors".[5]

In this type of legion, the 900 hastati formed 15 maniples, military units of 60 men each. Attached to each maniple were about 20 leves, javelin-armed light infantry.[7] The hastati stood in the first battle line, in front of the principes of the second line and the triarii of the third.[5] In a pitched battle, the leves would form up at the front of the legion and harass the enemy with javelin fire to cover the advance of the hastati. If the hastati failed to break the enemy during their engagement, they would fall back and let the heavier principes take over. If the principes could not break them, they would retire behind the triarii spearmen, who would then engage the enemy in turn. The equites, cavalrymen, were used as flankers and to pursue routing enemies. The rorarii and accensi in the final battle line were some of the least dependable troops, and were used in a support role, providing mass and reinforcing wavering areas of the line.[4]

Polybian system

By the time of the Polybian system, infantry were sorted into classes according to age and experience rather than wealth, the hastati being the youngest and least experienced.[8] Their equipment and role was very similar to the previous system, except they now carried swords, or gladii, instead of spears. Each hastatus also carried two pila, heavy javelins that, "contrary to deeply entrenched myth" (Goldsworthy), did not bend on impact to make any struck shield useless or prevent the weapon from being thrown back. The weight and barb alone sufficiently hampered any struck shield (often penetrating the shield to hit the man behind it), and the iron was sufficiently hard that pila were often used as hand-held spears against both infantry and cavalry. By the time the volley of pila had reached the enemy line (usually only fifteen yards distant for best effect), the legionaries were charging and very quickly at work with their swords. There was rarely any time for the foe to find a pilum, pull it out of whatever it had hit and throw it back.[9]

The hastati had been increased in number to 1,200 per legion, and formed 10 maniples of 120 men each.[10] The rorarii and accensi had been done away with. Leves had been replaced with velites, who had a similar role but were now also attached to principes and triarii.[10] Pitched battles were conducted in a similar fashion; the velites would gather at the front and fling javelins to cover the advance of the hastati. If the hastati failed to break the enemy, they would fall back on the principes, who had also been re-armed with swords. If the principes could not break them, they would retire behind the triarii, who would then engage the enemy.[11]

This order of battle was almost always followed, the battle of the Great Plains and the battle of Zama being among the few notable exceptions. At the Great Plains, Scipio, the Roman general, formed his men up in the usual manner, but once the hastati had begun to engage the enemy, he used his principes and triarii as a flanking force, routing the opposing Carthaginian troops.[12][13]

At Zama, Scipio arranged his men into columns, side by side, with large lanes in between. The opposing Carthaginian elephants were drawn into these lanes where many were killed by velites without inflicting many casualties on the Romans. Once the surviving elephants had been routed, he formed his men into a long line with his triarii and principes in the centre and hastati on the flanks, ready to engage the Carthaginian infantry.[13]

Organization of republican legions
  Unit Organization Number of soldiers
First battle line Hastati Ten maniples of 120 men 1,200 soldiers
Second battle line Principes Ten maniples of 120 men 1,200 soldiers
Third battle line Triarii Ten maniples of 60 men 600 soldiers
  Velites Split into groups attached to each maniple 1,200 soldiers
  Irregulars variable variable

Marian reforms

With the formal military reforms of Gaius Marius in 107 BC, intended to combat a shortage of manpower from wars against Jugurtha in Africa and Germanic tribes to the north, the different classes of units were done away with entirely.[14] The wealth and age requirements were scrapped. Soldiers would join as a career, rather than as service to the city, and would all be equipped as medium infantry with the same state-purchased equipment. Auxiliaries, local irregular troops, would fulfill other roles, serving as archers, skirmishers and cavalry.[15]

See also


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  4. ^ a b
  5. ^ a b c
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  10. ^ a b
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  13. ^ a b
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External links

  • The Roman Army
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