Radagaisus's army has had the run of…

Radagaisus's army has had the run of northern Italy for at least six months while Stilicho mobilizes thirty numerii (about fifteen thousand men) from the Italian field army in response to the invasion.

A second contingent of Roman troops, possibly recalled from the Rhine frontier (leaving this sector dangerously weakened), complements the Italian forces.

In addition, they receive help from Gothic auxiliaries under Sarus and Hunnic forces under Uldin.

Stilicho recalls troops from Britannia and the depth of the crisis is shown when he urges all Roman soldiers to allow their personal slaves to fight beside them.

His forces, including Hun and Alan auxiliaries, may in the end have totaled rather less than fifteen thousand men.

Contemporary accounts number the invaders in the hundreds of thousands, though any such figure is highly improbable—unless these numbers include the Alans, Vandals, and Suebi who would, in four months’ time, invade Gaul in large numbers.

Radagaisus's own force probably consists of about 20,000 fighting men.

Many of the fighters are accompanied by their families and other noncombatants, meaning that the total size of Radagaisus's group may have approached 100,000.

They attack the bridgehead community of Florentia and blockade the city, where no less than a third of the Goth's troops and allies are killed.

After two months, Stilicho's army relieves the siege of Florentia as the city is approaching the point of surrender, sending a heavily guarded convoy of provisions into the town and constructing a line of blockhouses, connected by trenches.

The Roman counterattack is extremely successful, compelling the withdrawal of Radagaisus's army into …