'Force' in the Bible

And you are to do to Ai and its king as you did to Jericho and its king: but their goods and their cattle you may take for yourselves: let a secret force be stationed to make a surprise attack on the town from the back.

So all the people were in their places, the army on the north side of the town and the secret force on the west; and that night Joshua went down into the valley.

Now when the king of Ai saw it, he got up quickly and went out to war against Israel, he and all his people, to the slope going down to the valley; but he had no idea that a secret force was waiting at the back of the town.

Then the secret force came quickly from their place, and running forward when they saw his hand stretched out, went into the town and took it, and put fire to it straight away.

Then the other force came out of the town against them, so that they were being attacked on this side and on that: and Israel overcame them and let not one of them get away with his life.

The Lord your God will send them away by force, driving them out before you; and you are to take their land for your heritage, as the Lord your God said to you.