The term 'barbed barricade' refers to a type of defensive structure used to protect an area from intruders. An abatis is a type of barbed barricade made from felled trees with sharpened branches pointing outward. A DAM is a barrier built across a river or other body of water, and a SHUT is a type of gate or barrier that can be opened and closed. All three of these structures can be used as a form of barbed barricade.