In the spring, Joab led the army of Israel out to battle. That was the time of year when kings went out to battle, but David stayed in Jerusalem. The army of Israel went to the country of Ammon and destroyed it. Then they went to the city of Rabbah. The army camped around the city—they stayed there to keep people from going in or out of the city. Joab and the army of Israel fought against the city of Rabbah until they destroyed it.