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A comment on Early US Intel assessment suggests strikes on Iran did not destroy nuclear sites. Parent comment
For concrete, ( that the mountain limestone is almost like..) is only 18 meters.
"... analysts at Janes say the weapon can penetrate about 200 ft (60 m) of earth or 60 ft (18 m) of concrete.."
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For concrete, ( that the mountain limestone is almost like..) is only 18 meters.
"... analysts at Janes say the weapon can penetrate about 200 ft (60 m) of earth or 60 ft (18 m) of concrete.."