'Mighty men' in the Bible

Menahem exacted the money of Israel, even of all the mighty men of wealth, of each man fifty shekels of silver, to give to the king of Assyria. So the king of Assyria turned back, and did not stay there in the land.

He carried away all Jerusalem, and all the officials, and all the mighty men of valor, even ten thousand captives, and all the craftsmen and the smiths; none remained, except the poorest sort of the people of the land.