2 Samuel 10:8-9

8And the children of Ammon came out, and put the battle in array at the entrance of the gate; and the Syrians of Zoba and of Rehob, and the men of Tob and Maacah were by themselves in the field.

9And Joab saw that the front of the battle was against him before and behind; and he chose out of all the choice men of Israel, and put them in array against the Syrians;