Kings II 10:9

9 And Joab saw that the front of the battle was against him from that which was opposed in front and from behind, and he chose out of all the young men of Israel, and they set themselves in array against Syria.

Kings II 10:9 In-Context

7 And David heard, and sent Joab and all his host, the mighty men.
8 And the children of Ammon went forth, and set the battle in array by the door of the gate: of Syria, Suba, and Roob, and Istob, and Amalec, being by themselves in the field.
9 And Joab saw that the front of the battle was against him from that which was opposed in front and from behind, and he chose out of all the young men of Israel, and they set themselves in array against Syria.
10 And the rest of the people he gave into the hand of Abessa his brother, and they set the battle in array opposite to the children of Ammon.
11 And he said, If Syria be too strong for me, then shall ye help me: and if the children of Ammon be too strong for thee, then will we be ready to help thee.

The Brenton translation of the Septuagint is in the public domain.