 Complete the following phrase:  In 401 Stilicho led the praesental army from Italy into Raetia and Noricum in response to an invasion by Vandals and Alans. Sensing an opportunity Alaric invaded Italy and lay siege to Mediolanum Milan where Honorius was residing. In 402 Stilicho returned to Italy and hastened forward with a selected vanguard in advance of his main body, breaking the siege of Mediolanum and rescuing the besieged emperor. One of his chieftains implored him to retreat from Italy, but Alaric refused. In a surprise attack on Easter Sunday in 402, Stilicho defeated Alaric at the 