The war which followed (the so-called first Punic War) lasted twenty-four years. It was fought out on the high seas and in the beginning it seemed that the experienced Carthaginian navy would defeat the newly created Roman fleet. Following their ancient tactics, the Carthaginian ships would either ram the enemy vessels or by a bold attack from the side they would break their oars and would then kill the sailors of the helpless vessel with their arrows and with fire balls. But Roman engineers invented a new craft which carried a boarding bridge across which the Roman infantrymen stormed the hostile ship. Then there was a sudden end to Carthaginian victories. At the battle of Mylae their fleet was badly defeated. Carthage was obliged to sue for peace, and Sicily became part of the Roman domains. Twenty-three years later new trouble arose. Rome (in quest of copper) had taken the island of Sardinia. Carthage (in quest of silver) thereupon occupied all of southern Spain. This made Carthage a direct neighbour of the Romans. The latter did not like this at all and they ordered their troops to cross the Pyrenees and watch the Carthaginian army of occupation. The stage was set for the second outbreak between the two rivals. Once more a Greek colony was the pretext for a war. The Carthaginians were besieging Saguntum on the east coast of Spain. The Saguntians appealed to Rome and Rome, as usual, was willing to help. The Senate promised the help of the Latin armies, but the preparation for this expedition took some time, and meanwhile Saguntum had been taken and had been destroyed. This had been done in direct opposition to the will of Rome. The Senate decided upon war. One Roman army was to cross the African sea and make a landing on Carthaginian soil. A second division was to keep the Carthaginian armies occupied in Spain to prevent them from rushing to the aid of the home town. It was an excellent plan and everybody expected a great victory. But the Gods had decided otherwise. [Illustration: HANNIBAL CROSSES THE ALPS]