Owing to my recent purchase of the reprinted version of 'Hannibal: Rome vs Carthage' I have just spent the last hour reading through some electronic information on his life and battles.
He (Hannibal) was indeed a millitary genius, few could stand up against the might of the Roman Republic for 15 years, against a string of competent (yet in most cases not exactly brilliant) Roman generals, outnumbered, unsupplied and deep within enemy territory and not only survive, but cause abject terror in one of the most powerful millitary states in the ancient world.
I must say that I cannot wait for my game to arrive.
To have a read of the Wiki article yourself go to.....
http://en.wikipedia.org/wiki/Hannibal