When the Ammonites saw that the Arameans had fled, they too fled before Joab’s brother Abishai, and they entered the city. So Joab went back to Jerusalem.
KJV
And when the children of Ammon saw that the Syrians were fled, they likewise fled before Abishai his brother, and entered into the city. Then Joab came to Jerusalem.
ASV
And when the children of Ammon saw that the Syrians were fled, they likewise fled before Abishai his brother, and entered into the city. Then Joab came to Jerusalem.