The Na-Mi-Ba is a Czechoslovakian minimum metal bakelite cased anti-tank blast mine. The mine uses a horizontal lever fuze, with a very low operating pressure that breaks open a glass capsule containing acid, which initiates a flash composition. The mine has a small main charge, and is normally used as the initiator for larger charges. The low operating pressure means that the mine could be used as an anti-personnel mine. The mine is no longer in service with the Czechoslovakian armed forces.