sentences:  Although Fuscus was initially successful in driving the invaders back across the border, the prefect suffered defeat when he was ambushed along with Legio V Alaudae during an expedition into Dacia, at the First Battle of Tapae.The entire legion was annihilated, and Fuscus killed.Little is known of the life of Cornelius Fuscus prior to his appearance in the civil war of 69.