In the Battle of Wertingen (8 October 1805) Imperial French forces led by Marshals Joachim Murat and Jean Lannes attacked a small Austrian corps commanded by Feldmarschall-Leutnant Franz Xaver von Auffenberg.

This huge mass of maneuver wheeled to the south and crossed the Danube River to the east of (i.e., behind) General Karl Freiherr Mack von Leiberich's concentration at Ulm.

Unaware of the force bearing down on him, Mack stayed in place as Napoleon's corps spread south across the Danube, slicing across his lines of communication with Vienna.

Feldmarschall-Leutnant Maximilien de Baillet's division included Infantry Regiments Kaunitz Nr.

Feldmarschall-Leutnant Prince Friedrich Franz Xaver of Hohenzollern-Hechingen's division was made up of Infantry Regiments Spork Nr.

One historian talks about individual battalions being broken by cavalry or surrounded and forced to surrender.