Capitulation of Ulm
Summary
The capitulation of Ulm ended the strategic encirclement orchestrated by Napoleon. Austrian General Karl Mack surrendered with nearly 27,000 men without a real battle, trapped by the Grande Armée's speed of maneuver.
Historical context
After a series of rapid victories (Wertingen, Elchingen, etc.), Napoleon succeeded in encircling the Austrian army at Ulm. Deprived of Russian reinforcements and lines of retreat, Mack capitulated after a tight blockade.
Tactics
Masterful use of enveloping maneuver: the Grande Armée cut lines of retreat, controlled bridges, and methodically isolated the fortress without direct assault.
Consequences
The collapse of the Austrian army at Ulm opened the road to Vienna for the French. This strategic victory neutralized an entire army without a major engagement, reinforcing Napoleon's military prestige.