'Fighting' in the Bible

The word which came unto Jeremiah from Jehovah, when Nebuchadnezzar king of Babylon, and all his army, and all the kingdoms of the earth that were under his dominion, and all the peoples, were fighting against Jerusalem, and against all the cities thereof, saying:

when the king of Babylon's army was fighting against Jerusalem, and against all the cities of Judah that were left, against Lachish and against Azekah; for these alone remained of the cities of Judah as fortified cities.