 Fortunately for the English, the Dutch marines spared the Chatham Dockyard, at the time England's largest industrial complex; a land attack on the docks themselves would have set back English naval power for a generation.A Dutch attack on the English anchorage at Harwich had to be abandoned however after the battle of Landguard Fort ended in Dutch failure.The Dutch success made a major psychological impact throughout England, with London feeling especially vulnerable just a year after the Great Fire of London.