Complex sentence: After 20 years repelling the continuing attacks Romans in the year 133 BC The Roman Senate gave Scipio Emiliano the task of destroying Numancia, who puts siege to the city, erecting a fence of 9 km supported by towers, moats, empaladizas, and so on.
Split into simpler sentences: After 20 years of hostilities, in the year 133 BC the Roman Senate gave Scipio Emiliano the task of destroying Numantia. He put siege to the city, erecting a fence of 9 km supported by towers, moats, "empaladizas", and so on.