'Fighting' in the Bible

"You know that my father David was unable to build a temple dedicated to the LORD his God because he was busy fighting wars all around him until the LORD defeated his enemies.

If they do wrong against you, (for no man is without sin,) and you are angry with them and give them up into the power of those who are fighting against them, so that they take them away as prisoners into a strange land, far off or near;

When Rehoboam came to Jerusalem, he got together all the men of Judah and the tribe of Benjamin, a hundred and eighty thousand of his best fighting-men, to make war against Israel and get the kingdom back for Rehoboam, the son of Solomon.

And Ahab said, By whom? And he said, The Lord says, By the servants of the chiefs who are over the divisions of the land. Then he said, By whom is the fighting to be started? And he made answer, By you.