'Fighting Men' in the Bible

The LORD then told Joshua, "Don't be afraid or lose heart! Take all the fighting men with you, and go up right now to Ai. Take note that I have handed over the king of Ai into your control, along with his people, his city, and his land.

So Joshua and all of the fighting men prepared to go out against Ai. Joshua selected 30,000 valiant warriors and sent them out by night,