The king — In his royal city, to which he fled out of the battle. Head of these kingdoms — Not of all Canaan, but of all those who were confederate with him in this expedition.
Related Commentaries of Joshua 11:10
Joshua 11:10
10 And Joshua at that time turned back, and took Hazor, and smote the king thereof with the sword: for Hazor beforetime was the head of all those kingdoms.