What's the durability of an advanced and fortified military base? What's the average size of a base?

How many tons of tnt are needed to destroy an average sized, well fortified and advanced military base? or:How many tons of tnt are needed to destroy

How many tons of tnt are needed to destroy an average sized, well fortified
and advanced military base?

or:How many tons of tnt are needed to destroy an average sized, well fortified and advanced military base?

or:Read a book. Learn a few things. Come back with a better question.

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