The Romans then sent their envoy to Carthage (though they did not send an army to help Saguntum).
The envoy demanded that the Carthaginians remove Hannibal from command and punish him.
If this was not done, Rome would declare war on Carthage.
Fabius, the Roman envoy "laid his hand on the fold of his toga and,
 'Here,' he said, 'we bring you peace and war. Take which you will.'
Scarcely had he spoken when the answer no less proudly rang out: 'Whichever you please, we do not care.'
Fabius let the gathered folds fall, and cried: 'We give you war.' (Livy 21.18). 

Thus began the Second Punic War, declared by Rome and conducted, on the Carthaginian side,
almost entirely by Hannibal and his brothers, Mago and Hasdrubal. 

