In that region, kings usually went with their armies to fight their enemies in the springtime. But the following year, in the springtime, David did not do that. Instead, he stayed in Jerusalem, and he sent his commander Joab to lead the army. So Joab went with the other officers and the rest of the Israeli army. They crossed the Jordan River and defeated the army of the Ammon people-group. Then they surrounded their capital city, Rabbah.