there are giant bombs like MOAB with the same explosive power of a small tactical nuke. Why don’t they just use the small nuke?

Question

there are giant bombs like MOAB with the same explosive power of a small tactical nuke. Why don’t they just use the small nuke?

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Answer 1

It’s nowhere near the exposive power of a small tactical nuke. A MOAB has an explosive power of 11 tons. Which is a lot, but still in the same ballpark as the largest bombs used in WW2.

Even small nuclear weapon however are measured in several hundred tons, most in the kilotons. The difference is destroying a building, and destroying a city centre.