When the Ammonites saw that the Arameans had fled, they too fled before Abishai, and they entered the city. So Joab returned from fighting against the Ammonites and came to Jerusalem.

2 Samuel 8:12
from Edom and Moab, from the Ammonites and Philistines and Amalekites, and from the spoil of Hadadezer son of Rehob, king of Zobah.

2 Samuel 10:15
When the Arameans saw that they had been defeated by Israel, they regrouped.

2 Samuel 11:1
In the spring, at the time when kings march out to war, David sent out Joab and his servants with the whole army of Israel. They destroyed the Ammonites and besieged Rabbah, but David remained in Jerusalem.

2 Samuel 23:18
Now Abishai, the brother of Joab and son of Zeruiah, was chief of the Three, and he lifted his spear against three hundred men, killed them, and won a name along with the Three.

And when the children of Ammon saw that the Syrians were fled, then fled they also before Abishai, and entered into the city. So Joab returned from the children of Ammon, and came to Jerusalem.