OZM

(fragmentation-barrier mine, in the Russian and other post-Soviet armies as informally called "frog mine" or "witch" ) They are normally painted olive green, and issued with a spool of tripwires and two green painted wooden or metal stakes for affixing the tripwires.

When the end of the tether is reached at a height of approximately 0.5 m, the main charge explodes and scatters fragments of the casing across a wide area.

The MS-3 is an anti-handling device which closely resembles a PMN mine, except that it has a "blister" on top and operates purely as a pressure-release boobytrap.

Lifting an OZM mine (without rendering safe the MS-3 placed underneath) will trigger detonation.

Since the Ottawa Treaty, a number of countries have decided to retain their OZM mines, but convert them to command detonation only by destroying all fuzes which can be indiscriminately activated – potentially by non-combatants or animals.