Using insults, the Romans provoke the Gauls to fight.
अनुबादका लागि चाहिन सक्ने थप जानकारी
You could use provoked instead of roused but either way is fine. Another possible version in a more literary English style would be: The Romans, using insults, provoked the Gauls to fight.
Thank you once more. Actually, I was in doubt between "rouse" and "provoke", and I now I changed for the second verb. I kept the adverbial expression at the beginning to match the Latin source, as well as the verb in present tense.