Two rivals stand opposite each other and feint, lunge, parry and riposte until one scores the required number of hits to win.
Sunday's gathering was a riposte to such glib optimism.
In recent years English castle specialists have argued that Dover castle was Henry's riposte to the burgeoning cult of Saint Thomas.
He adopted a flag that looked remarkably like a swastika, though he insisted that the design was of three interlinked 7s and represented a Christian riposte to 666, the Number of the Beast.
On the other hand, she offers a powerful riposte to those who insist on the opposite: that the brewing clash of civilisations is all the fault of Western misdeeds, for which no apology will suffice.