Alma 3:23

but he sent up a numerous army against them; and they went up and slew many of the Lamanites, and drove the remainder of them out of the borders of their land;

But he sent a large army against them. They went up and killed many of the Lamanites. They drove the rest of them out of their land.

But he sent a large army, and they killed many Lamanites and drove the rest out of Nephite territory.