sentences:  Lucius Manlius was given two legions with 10,000 allied infantry and 1,000 cavalry.Gauls of the Boii and Insubres tribes in northern Italy had attacked the settlers intended to build the Roman colonies of Placentia and Cremona, and had penned them and a small Roman relief force in Mutina.One of the two legions and an allied detachment originally intended for Scipio was diverted for the relief of Mutina under the Praetor Lucius Manlius Vulso.