When did Hannibal barca start war?

Carthaginian general, Hannibal, is considered one of the greatest military leaders in history. Rome had come into dominance and was attempting to subjugate all its Mediterrean neighbors. There were two Punic wars. In the first war, Hannibal's father, Hamilcar Barca and his brothers-in-law went down to defeat. Fighting through the northern tribes and with an army that included 20,000 troops and 38 elephants, Hannibal pushed the war to Roman territories in 218 BC with the second Punic War.