338 BC
One year later, Manlius defeated the Latins at the Battle of Trifanum. The Latins were finally defeated in 338 BC at the Battle of Antium on the river Astura, where Gaius Maenius commanded the Roman naval forces which defeated the combined Latin armies of Antium, Lanuvium, Aricia and Velitrae.
Read more about this topic: Latin War, Roman Subjugation of The Latins and The Volsci 339