Date and place
- October 15th to 20th at Ulm, Baden-Württemberg, on the border with Bavaria.
Involved forces
- French Army (80 000 men), under emperor Napoleon Ist.
- Austrian Army (40 000 men), under Prince Johann I Joseph of Liechtenstein and general Karl Mack von Leiberich.
Casualties and losses
- French Army : 500 men dead, 1 000 wounded
- Austrian Army : 4 000 dead, 25 000 prisoners
On October 15, 1805, following a request for surrender addressed to the Austrians and left unanswered, Napoleon took the offensive around 2:30 p.m. by sending General Henri-Gatien Bertrand then General Jean-Pierre Firmin Malher (VIth Corps), who managed to take the heights of Michelsberg [48.41168, 9.98326], north-northwest of Ulm:

At the same time, General Louis-Gabriel Suchet attacks the Frauensberg [48.41173, 9.98812], very close, to the north.
At the same time, on the same day, the city of Ulm was completely surrounded by Marshals Jean Lannes et Michel Ney, and Generals Auguste Frédéric Louis Viesse de Marmont and Louis-Gabriel Suchet.
In the evening, General Louis Henri Loison reaches the gates of the city, but is pushed back.

The next day, Napoleon decides not to attack the city while Karl Mack von Leiberich , is stalling while waiting for the next arrival of the Russians. However, fearing the lack of food and after a short bombardment, he yielded and negotiated with Napoleon the conditions of a surrender, which took place on October 20.
Map of the battle of Ulm

Picture - The surrender of Ulm. Painted by Charles Thévenin (1764 - 1838).
