Desc: History's Raiders: Cockleshell Raiders: Directed by Jonathan Martin. With Adolf Hitler. During World War II, British commandos staged raids on Axis shipping in enemy ports by sending teams of saboteurs into heavily guarded ports using flimsy, specially-made canoes nicknamed "cockleshells." This documentary traces two of the most spectacularly successful efforts in which freighters and naval vessels in Bordeaux and Singapore where sunk or disabled by a handful of men, most of whom never returned from their mission.