The Etruscans, Samnites and Umbrians crossed the Apennine Mountains and advanced near Sentinum (in the Marche region, near modern Sassoferrato). Their plan was for the Samnites and Senones to engage the Romans and for the Etruscans and Umbrians to take the Roman camp during the battle. Deserters from Clusium informed Quintus Fabius about this plan. The consul ordered the legions in Falerii and the Vatican to march to Clusium and ravage its territory for another diversionary strategy. It drew the Etruscans away from Sentinium to defend their land. In the Battle of Sentinum, the Gauls stood on the right wing and the Samnites on the left. Quintus Fabius stood on the right and Publius Decius on the left. Livy said that the two forces were so evenly matched that if the Etruscans and Umbrians had been present it would have been a disaster for the Romans.