1 Chronicles 19:7-9

New International Version

⁷ They hired thirty-two thousand chariots and charioteers, as well as the king of Maakah with his troops, who came and camped near Medeba,^(A) while the Ammonites were mustered from their towns and moved out for battle.

⁸ On hearing this, David sent Joab out with the entire army of fighting men. ⁹ The Ammonites came out and drew up in battle formation at the entrance to their city, while the kings who had come were by themselves in the open country.