Complex sentence: In 87, Emperor Domitian decided to send his prefect of the Praetorian Guards, Cornelius Fuscus, to conquer and punish the Dacians with four or five legions but suffered a major defeat when ambushed by the forces of Diurpaneus.
Split into simpler sentences: In 87, Emperor Domitian sent his prefect of the Praetorian Guards, Cornelius Fuscus, to punish the Dacians. His four or five legions suffered a major defeat when ambushed by the forces of Diurpaneus.