High Quality Content by WIKIPEDIA articles! 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. An anti-tank mine, (abbreviated to "AT mine"), is a type of land mine designed to damage or destroy vehicles including tanks and armored fighting vehicles. Compared to anti-personnel mines, anti-tank mines typically have a much larger explosive charge, and a fuze designed only to be triggered by vehicles or, in some cases, tampering with the mine.