"Because you have no properly trained gunners. You know how strong Algiers was, and yet it was attacked with success, twice by the French, twice by ourselves, and once by us and the Dutch; but it is a rule that a strongly defended fort cannot be attacked successfully by ships. If these forts were in proper condition and well manned, I don't think that even Nelson would attack them, though he might land somewhere along the coast, attack and capture the town from the land side, and then carry the batteries. Successful as he has been at sea, he has had some experience as to the difficulty of taking forts. He was beaten off at Teneriffe, and although he did succeed in getting the Danes to surrender at Copenhagen, it's well known now that his ships really got the worst of the fight, and that if the Danes had held on, he must have drawn off with the loss of many of his vessels."