Ether 7:16

And he gave battle unto Shule, the king, in the which he did obtain the land of their first inheritance; and he became a king over that part of the land.

He fought Shule, the king. He won the land where their people first lived. He became king over that part of the land.

He attacked King Shule and won back the land of their first inheritance. He became king over that part of the land.