Alma 58:30

Yea, and it came to pass that the armies of the Lamanites did flee out of all this quarter of the land. But behold, they have carried with them many women and children out of the land.

The Lamanite armies ran away from all of this part of the land. But they took many women and children with them.

The Lamanite armies abandoned this entire region. But they took many women and children with them as prisoners.