 Complete the following phrase:  However, in 405, Stilicho was distracted by a fresh invasion of Northern Italy. Another group of Goths fleeing the Huns, led by one Radagaisus, devastated the north of Italy for six months before Stilicho could muster enough forces to take the field against them. Stilicho recalled troops from Roman Britain, and the depth of the crisis was shown when he urged all Roman soldiers to allow their personal slaves to fight beside them. His forces, including Hun and Alan auxiliaries, may in the end have totalled rather less than 15,000 men. Radagaisus was defeated and executed, while 12,000 prisoners from the defeated horde were drafted into Stilichos service. Stilicho continued negotiations with Alaric; Flavius Aetius, son of one of Stilichos major supporters, was sent as a hostage to Alaric in 405. In 406, Stilicho heard of 