Napoleonic Wars: War of the Third Coalition: Battle of Cape Finisterre: An inconclusive naval action is fought between a combined French and Spanish fleet under Admiral Pierre-Charles Villeneuve of France and a British fleet under Admiral Robert Calder.

The Napoleonic Wars (1803–15) were a global series of conflicts fought by a fluctuating array of European coalitions against the French First Republic (1803–04) under the First Consul followed by the First French Empire (1804–1815) under the Emperor of the French, Napoleon. The wars originated in political forces arising from the French Revolution (1789–1799) and French Revolutionary Wars (1792–1802) and produced a period of French domination over Continental Europe. The wars are categorised as seven conflicts, five named after the coalitions that fought Napoleon, plus two named for their respective theatres: the War of the Third Coalition, War of the Fourth Coalition, War of the Fifth Coalition, War of the Sixth Coalition, War of the Seventh Coalition, the Peninsular War, and the French invasion of Russia.