An ambush

Joshua 8:3–22 "So Joshua arose, and all the people of war, to go up against Ai: and Joshua chose out thirty thousand mighty men of valour, and sent them away by night. And he commanded them, saying, Behold, ye shall lie in wait against the city, even behind the city: go not very far from the city, but be ye all ready: And I, and all the people that are with me, will approach unto the city: and it shall come to pass, when they come out against us, as at the first, that we will flee before them, (For they will come out after us) till we have drawn them from the city; for they will say, They flee before us, as at the first: therefore we will flee before them. Then ye shall rise up from the ambush, and seize upon the city: for the LORD your God will deliver it into your hand. And it shall be, when ye have taken the city, that ye shall set the city on fire: according to the commandment of the LORD shall ye do. See, I have commanded you. Joshua therefore sent them forth: and they went to lie in ambush, and abode between Bethel and Ai, on the west side of Ai: but Joshua lodged that night among the people. And Joshua rose up early in the morning, and numbered the people, and went up, he and the elders of Israel, before the people to Ai. And all the people, even the people of war that were with him, went up, and drew nigh, and came before the city, and pitched on the north side of Ai: now there was a valley between them and Ai. And he took about five thousand men, and set them to lie in ambush between Bethel and Ai, on the west side of the city. And when they had set the people, even all the host that was on the north of the city, and their liers in wait on the west of the city, Joshua went that night into the midst of the valley. 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. "

The tactical nature of this battle plan can only be properly appreciated with some knowledge of the topography. Ai was at the head of a deep valley running down into the Jordan Valley. Joshua sent a large part of his army to hide in the hills behind Ai and they remained there all night. In the morning a small contingent of soldiers went to attack the city. The people were confident after their previous victory so all the men ran out of the city to fight against Israel’s army. The soldiers in that contingent ran away down into the steep valley. As they went into the valley the rest of the Israeli army attacked and sacked the city. They set the city on fire. When the other contingent saw the smoke rise up from the city they turned to face the men from Ai. The rest of the Israeli army blocked their retreat to the city. The men from Ai were caught in the ambush and massacred. This was an example of an outstanding battle plan carried out by a great general. All of Joshua’s doubts and his loss of reputation were put away and he regained his respect as the Lord’s general at that time.