Medium Atomic Demolition Munition

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Scientists look at a MADM nuclear landmine casing (warhead is at left.)

Internal components of the MADM setup. W45 warhead is just right of casing.

Medium Atomic Demolition Munition (MADM) was a tactical nuclear weapon developed by the United States during the Cold War. They were designed to be used as nuclear land mines and for other tactical purposes, with a relatively low explosive yield from a W45 warhead, between 1 and 15 kilotons. Note that this is still very powerful by conventional explosive standards; for example this is slightly more powerful than the bomb that destroyed Hiroshima and two to three orders of magnitude larger in explosive power than the largest conventional bomb, the MOAB. Each MADM weighed around 400 lb (181 kg) total. They were produced between 1965 and 1986.