Hannibal was the leader of the Carthaginian army and he fought against the Romans in 1 war commonly known as the 2nd Punic war. did not fight in the first, lost the second when he crossed the alps...
It depends by who you mean by Hannibal there was a man by the name of Hannibal Lector in a movie series (silence of the lambs). For more info on Hannibal Lector go to...