Battle of Vesuvius

The Battle of Vesuvius (also known as the battle of the Veseris) was the first recorded battle of the Latin War. The battle was fought near Mount Vesuvius in 340 BC between the Romans, and their allies the Samnites, and a coalition of several peoples, Latins, Campanians, Volsci, Sidicini, and Aurunci. The surviving sources on the battle however, focus almost solely on the Romans (led by Titus Manlius Torquatus and Publius Decius Mus) and the Latins.

The battle became famous for to episodes said to have taken place: Manlius Torquatus' execution of his own son after he disobeyed orders and fought an enemy champion in single combat, and the self-sacrifice of Decius Mus, who devoted himself and the enemy army to the gods of the underworld, and then charged into the enemy lines and was slain.

After Decius Mus had fallen, consul Manlius Torquatus led his veteran reserve against Latin lines and killed or captured nearly three fourths of the Latin army. The remaining soldiers of the Latin army fled but because the Roman loss was so great, they could not pursue their enemies.

Background
The Latin and Campanian armies were stationed in Capua. Since the Romans saw this as a legitimate threat, they sent in both consuls to Campania to work together.

The duel of Titus Manlius
According to Livy, both armies arrived in the vicinity of Mount Vesuvius near the Veseris river. The consuls had ordered that no man was to leave his post to fight the enemy unless ordered to do so. However, after this order was put into motion Titus Manlius Torquatus, consul Manlius Torquatus' son, led a patrol into Latin territory and was challenged to a single combat against Geminus Maecius (a well known Tusculan warrior). T. Manlius accepted the challenge against his father's wishes and won the battle. On T. Manlius' return to camp he was arrested and then beheaded as an example of maintaining discipline.

The consuls' dream
Decius Mus and Manlius Torquatus both had a dream before the final battle that the Romans would only be victorious if one of the consuls died. Decius and Manlius made a pact that which ever side of the battle opened up, then that leader would sacrifice himself in the battle.

The battle
Manlius commanded that his soldiers be stationed on the right and Decius' forces on the left. Decius' wing opened and he charged into battle, immediately being killed on the front lines of the Latin army. Manlius then led his forces into battle to victory against the Latin army.