Battle of Trafalgar
The Battle of Trafalgar (21 October 1805) was a naval engagement fought by the British Royal Navy against the combined fleets of the French and Spanish Navies, during the War of the Third Coalition (August–December 1805) of the Napoleonic Wars (1796–1815).
Ulm Campaign
As the Austrians were marching out of Ulm to surrender, a combined Franco-Spanish fleet was being destroyed at the Battle of Trafalgar. This decisive British victory ended the naval threat from France and ensured British naval domination until World War I. Despite this setback, the Ulm Campaign had been a spectacular victory and had witnessed the elimination of an entire Austrian army at very little cost for the French. The 8th bulletin of the Grande Armée described the scale of the achievement: