The Piedmontese decide to send 200 volunteers on a reconnaissance mission beyond the Mincio River, into Austrian territory. They exceed their assigned role and capture an Austrian powder magazine with 500 barrels of gunpowder in Castelnuovo. But without Piedmontese support, they are forced to retreat. Austrian anger will turn against the local population, guilty of having enthusiastically welcomed the volunteers, and they will massacre 113 people by bombing the village.
