Second Punic War: Commanded by Hannibal, the Carthaginians ambushed a Roman army at the Battle of Lake Trasimene, capturing or killing 25,000 men. Hannibal: Hannibal was a Carthaginian general and statesman who commanded the forces of Carthage in their battle against the Roman Republic during the Second Punic War. Hannibal lived during a period of great tension in the Mediterranean Basin, triggered by the emergence of the Roman Republic as a great power with its defeat of Carthage in the First Punic War. Revanchism prevailed in Carthage, symbolized by the pledge that Hannibal made to his father to "never be a friend of Rome". June 21, 217 BC. Wiki link