The Siege of Jerusalem in the year 70 CE was the decisive event of the First Jewish–Roman War, in which the Roman army captured the city of Jerusalem and destroyed both the city and its Temple. Siege of Jerusalem, (70 CE), Roman military blockade of Jerusalem during the First Jewish Revolt. The fall of the city marked the effective conclusion of a four-year campaign against the Jewish insurgency in Judaea. The Romans destroyed much of the city, including the Second Temple.