on the European continent, while the British Royal Navy controlled the seas. During the course of the war, the British imposed a naval blockade on France, which affected trade and kept the French from fully mobilising their naval resources. Despite several successful evasions of the blockade by the French navy, it failed to inflict a major defeat upon the British, who were able to attack French interests at home and abroad with relative ease. When the Third Coalition declared war on France, after the short-lived Peace of Amiens, Napoleon renewed his determination to invade Britain. To do so, he needed to ensure that the Royal Navy would be unable to disrupt the invasion flotilla, which would require control of the English Channel. The main French fleets were at Brest in Brittany and at Toulon on the Mediterranean coast. Other ports on the French Atlantic coast harboured smaller squadrons. France and Spain were allied, so the Spanish fleet based in Cádiz and Ferrol was also available. The British possessed an experienced and well-trained corps of naval officers. By contrast, some of the best officers in the French navy had either been executed or had left the service during the early part of the French Revolution. Vice-Admiral Pierre-Charles Villeneuve had taken command of the French Mediterranean fleet following the death of Latouche Treville. There had been more competent officers, but they had either been employed elsewhere or had fallen from Napoleon's favour. Villeneuve had shown a distinct lack of enthusiasm for facing Nelson and the Royal Navy after the French defeat at the Battle of the Nile in 1798. Napoleon's naval plan in 1805 was for the French and Spanish fleets in the Mediterranean and Cádiz to break through the blockade and join forces in the Caribbean. They would then return, assist the fleet in Brest to emerge from the blockade, and together clear the English Channel of Royal Navy ships, ensuring a safe passage for the invasion barges. Pursuit of Villeneuve Early in 1805, Vice Admiral Lord Nelson commanded the British fleet blockading Toulon. Unlike William Cornwallis, who maintained a close blockade off Brest with the Channel Fleet, Nelson adopted a loose blockade in the hope of luring the French out for a major battle, saying; 'to be able to get at the enemy you must let them come out to you, if you cannot get at them. However, Villeneuve's fleet