Alma 23:13

and these are the names of the cities of the Lamanites which were converted unto the Lord; and these are they that laid down the weapons of their rebellion, yea, all their weapons of war; and they were all Lamanites.

These are the names of the Lamanite cities that became believers in the Lord. They put down their weapons. They stopped fighting. They were all Lamanites.

Those were the Lamanite cities where people came to the Lord and laid down their weapons—all of them. Every one of them was Lamanite.