As to the intensity of the fighting, it is worth noting that in this short period six great battles took place between fleets numbering as a rule from 70 to 120 ships on a side. By comparison it may be remarked that at Trafalgar the total British force numbered 27 ships of the line and the Allies, 33. Nor were the men of war of Blake and Tromp the small types of an earlier day. In 1652 the ship of the line had become the unit of the fleet as truly as it was in 1805. It is true that Blake's ships were not the equal of Nelson's huge "first rates," because the "two-decker" was then the most powerful type. The first three-decker in the English navy was launched in the year of Blake's death, 1657. The fact remains, however, that these fleet actions of the Dutch Wars took place on a scale unmatched by any of the far better known engagements of the 18th or early 19th century. A curious naval weapon survived from the day when Howard drove Medina Sidonia from Calais roads, the fireship, or "brander." This was used by both English and Dutch. Its usefulness, of course, was confined to the side that held the windward position, and even an opponent to leeward could usually, if he kept his head, send out boats to grapple and tow the brander out of harm's way. In the battle of Scheveningen, however, Dutch fireships cost the English two fine ships, together with a Dutch prize, and very nearly destroyed the old flagship of Blake, the _Triumph_. She was saved only by the extraordinary exertions of her captain, who received mortal injury from the flames he fought so courageously.