Whether this theory is fully accepted or not, the fact remains that the only sure way of conquering England was by a naval contest. Her first and main defense was the British fleet, which, spread out to the limits of safety to watch French ships wherever harbored, guarded not only against a concentration in the Channel, but against incursions into other fields. The immediate defense of the coasts was intrusted to flotillas of armed boats, over 700 in all, distributed along the coast from Leith south-about to Glasgow, with 100 on the coast of Ireland. Naval men looked upon these as of slight value, a concession, according to Earl St. Vincent, to "the old women in and out" (of both sexes) at home. The distribution of the main battle squadrons varied, but in March, 1805, at the opening of the Trafalgar campaign they were stationed as follows: Boulogne and the Dutch forces were watched by Admiral Keith with 11 of the line and 150 smaller units scattered from the Texel to the Channel Islands. The 21 French ships under Ganteaume at Brest, the strategic center, were closely blockaded by Cornwallis, whose force, by Admiralty orders, was not to fall below 18 of the line. A small squadron had been watching Missiessy's 5 ships at Rochefort and upon his escape in January had followed him to the West Indies. The 5 French and 10 Spanish at Ferrol and the 6 or more ready for sea at Cadiz were held in check by forces barely adequate. In the Gulf of Lyons Nelson with 13 ships had since May, 1803, stood outside the distant but dangerous station of Toulon. Owing to the remoteness from bases, a close and constant blockade was here impossible; moreover, it was the policy to let the enemy get out in the hope of bringing him to action at sea. [Illustration: POSITIONS OF BRITISH AND ENEMY SHIPS, MARCH, 1805] To effect a concentration in the Channel in the face of these obstacles was the final aim of all Napoleon's varied naval combinations of 1804 and 1805--combinations which impress one with the truth of Graviere's criticism that the Emperor lacked "_le sentiment exact des difficultes de la marine_," and especially, one should perhaps add, _de la marine francaise_. The first plan, the simplest and, therefore, most promising, was that Latouche Treville with the Toulon fleet should evade Nelson and, after releasing ships on the way, enter the Channel with 16 of the line, while Cornwallis was kept occupied by Ganteaume. This was upset by the death of Latouche, France's ablest and most energetic admiral, in August of 1804, and by the accession, two months later, of Spain and the Spanish navy to the French cause. After many misgivings Napoleon chose Villeneuve to succeed at Toulon. Skilled in his profession, honest, and devoted, he was fatally lacking in self-confidence and energy to conquer difficulties. "It is sad," wrote an officer in the fleet, "to see that force which under Latouche was full of activity, now without faith in either their leader or themselves."