these lands. The second war with the Visigoths, led by king Alaric, in which they raided Greece, and then invaded Italy, culminating in the sack of Rome (410). The Visigoths eventually left Italy and founded the Visigothic Kingdom in southern Gaul and Hispania. The rise of the Hunnic Empire under Attila and Bleda (434–453), who raided the Balkans, Gaul, and Italy, threatening both Constantinople and Rome. The second sack of Rome, this time by the Vandals (455). Failed counterstrikes against the Vandals (461–468). The Western Emperor Majorian planned a naval campaign against the Vandals to reconquer northern Africa in 461, but word of the preparations got out to the Vandals, who took the Roman fleet by surprise and destroyed it. A second naval expedition against the Vandals, sent by Emperors Leo I and Anthemius, was defeated at Cape Bon in 468. Deposition of the last Western Emperors, Julius Nepos and Romulus Augustus (475–480). Julius Nepos, who had been nominated by the Eastern Emperor Zeno, was deposed by the rebelled magister militum Orestes, who installed his own son Romulus in the imperial throne. Both Zeno and his rival Basiliscus, in the East, continued to regard Julius Nepos, who fled to Dalmatia, as the legitimate Western Emperor, and Romulus as an usurper. Shortly after, Odoacer, magister militum appointed by Julius, invaded Italy, defeated Orestes, and deposed Romulus Augustus on September 4, 476. Odoacer then proclaimed himself ruler of Italy and asked the Eastern Emperor Zeno to become formal Emperor of both empires, and in so doing legalize Odoacer's own position as Imperial viceroy of Italy. Zeno did so, setting aside the claims of Nepos, who was murdered by his own soldiers in 480. Foundation of the Ostrogothic Kingdom in Italy (493). Concerned with the success and popularity of Odoacer, Zeno started a campaign against him, at first with words, then by inciting the Ostrogoths to take back Italy from him. They did as much, but then founded an independent kingdom of their own, under the rule of king Theodoric. Italy and the entire West were lost to the Empire. Theories and explanations of the fall The various theories and explanations of the fall of the Roman Empire in the West can be very broadly classified into four groups, although this classification is not without overlap and does not imply four schools of thought or often more than a superficially similar result of