2 Samuel 10:18
But the Arameans fled before Israel, and David killed seven hundred charioteers and forty thousand foot soldiers. He also struck down Shobach commander of their army, who died there.

1 Chronicles 19:17
When this was reported to David, he gathered all Israel, crossed the Jordan, and went against the Arameans, arrayed for battle against them. When David lined up to engage them in battle, they fought against him.

1 Chronicles 19:19
When Hadadezer's subjects saw that they had been defeated by Israel, they made peace with David and became subject to him. So the Arameans were unwilling to help the Ammonites anymore.