Remains of a first-century CE wall segment and a tower base uncovered in the Russian Compound, Jerusalem, shed light on the course of the Third Wall in the west of the city and the fierce battle that took place there in the First Jewish Revolt. A concentration of ballista stones and other weapons at the site support the evidence furnished by Josephus in Jewish War, describing the battle at the Third Wall and the siege imposed by Titus on Jerusalem in 70 CE. The archaeological evidence and the historical sources enable a reconstruction of the battle between the Roman army and the Jewish defenders, which resulted in the breaching of the Third Wall and ended with the destruction of the Second Temple.