When the king of Ai saw this, he and all his people, the inhabitants of the city, hurried out early in the morning to the meeting place facing the Arabah to meet Israel in battle; but he did not know that there was an ambush against him behind the city. And Joshua and all Israel made a pretense of being beaten before them, and fled in the direction of the wilderness. So all the people who were in the city were called together to pursue them, and as they pursued Joshua they were drawn away from the city. There was not a man left in Ai or Bethel who did not go out after Israel; they left the city open, and pursued Israel. Then the LORD said to Joshua, "Stretch out the sword that is in your hand toward Ai; for I will give it into your hand." And Joshua stretched out the sword that was in his hand toward the city. As soon as he stretched out his hand, the troops in ambush rose quickly out of their place and rushed forward. They entered the city, took it, and at once set the city on fire. So when the men of Ai looked back, the smoke of the city was rising to the sky. They had no power to flee this way or that, for the people who fled to the wilderness turned back against the pursuers. When Joshua and all Israel saw that the ambush had taken the city and that the smoke of the city was rising, then they turned back and struck down the men of Ai. And the others came out from the city against them; so they were surrounded by Israelites, some on one side, and some on the other; and Israel struck them down until no one was left who survived or escaped. (NRSV 8:14-22)
And it came to pass, when the king of Ai saw it, that they hasted and rose up early, and the men of the city went out against Israel to battle, he and all his people, at a time appointed, before the plain; but he wist not that there were liers in ambush against him behind the city. And Joshua and all Israel made as if they were beaten before them, and fled by the way of the wilderness. And all the people that were in Ai were called together to pursue after them: and they pursued after Joshua, and were drawn away from the city. And there was not a man left in Ai or Bethel, that went not out after Israel: and they left the city open, and pursued after Israel. And the LORD said unto Joshua, Stretch out the spear that is in thy hand toward Ai; for I will give it into thine hand. And Joshua stretched out the spear that he had in his hand toward the city. And the ambush arose quickly out of their place, and they ran as soon as he had stretched out his hand: and they entered into the city, and took it, and hasted and set the city on fire. And when the men of Ai looked behind them, they saw, and, behold, the smoke of the city ascended up to heaven, and they had no power to flee this way or that way: and the people that fled to the wilderness turned back upon the pursuers. And when Joshua and all Israel saw that the ambush had taken the city, and that the smoke of the city ascended, then they turned again, and slew the men of Ai. And the other issued out of the city against them; so they were in the midst of Israel, some on this side, and some on that side: and they smote them, so that they let none of them remain or escape. (KJV 8:14-22)
In the rematch against Ai, Joshua proves why he's the leader of the Israelites. Not only is his faith in God incredibly strong, but he displays strategic cunning and clarity that brings about a victory for Israel. More than Jericho, Ai proves Joshua's brilliance.