I can't pretend to know much about this (just school memories from long ago), so thank you for the information. If a convention was signed, I think the Danes could have had good expectation that their ships would be returned to them. Was there any claim that the Danes were actually intending to attack, rather than that they might be pressured into doing so? I have always felt uncomfortable about this episode, largely on the perhaps unsatisfactory ground that Denamrk doesn't seem a natural enemy to Brtain, but was this anything unusually nasty by the standards of a war that brought suffering and often devastation to just about every part of Europe that armies passed through? Somehow I do think that it is bombardment by a fleet (rather than an attack by an army) that makes it seem so nasty.