1 Chronicles 19:6-7

When the Ammonites saw that they had made themselves hateful to David, Hanun and his people sent 1,000 talents of silver to hire for themselves chariots and horsemen from Mesopotamia, Aram-maacah, and Zobah. So they hired for themselves 32,000 chariots and the king of Maacah and his troops, who came and camped before Medeba. And the Ammonites gathered together from their cities and came to battle.