 Akragas (Agrigentum in Latin; modern Agrigento), a port city halfway along the south coast of Sicily, was chosen by the Carthaginians as their strategic centre.The Romans marched on it in 262 BC and besieged it.The Romans had an inadequate supply system, partly because the Carthaginian naval supremacy prevented them from shipping supplies by sea, and they were not in any case accustomed to feeding an army as large as 40,000 men.