England.
The Battle of Trafalgar was a major event of the Napoleonic Wars, pitting England against the French and Spanish.
Napoleon Bonaparte planned to control the English channel and invade England afterwards to assert his European hegemony. To do so, he sent an army lead by the French admiral Villeneuve from the port of Cadiz. Not far from there, near the southwest coast of Spain, he encountered the English fleet under the command of Lord Nelson, seen as many as one of the brightest naval strategists of all time. Although outnumbered, using astute and innovative techniques, Lord Nelson secured a crucial victory for the Coalition which opposed Napoleon.