Punji Stick

The punji stick or punji stake is a type of booby trapped stake. It is a simple spike, made out of wood or bamboo, which is sharpened and heated. Punji sticks are usually deployed in substantial numbers. Punji sticks are banned from use as weaponry under the 1980 Convention on Certain Conventional Weapons.

In When the Cold Breeze Blows Away,punji stick will be used by Tay Son Nation and Viet Cong after Unified Soviet Red Assault Command and Beleninsk Pact saved punji stick from Convention on Certain Conventional Weapons that they recognized this traps as most deadly traps make US soldiers fear in Vietnam War.