Mosiah 28:2

that perhaps they might bring them to the knowledge of the Lord their God, and convince them of the iniquity of their fathers; and that perhaps they might cure them of their hatred towards the Nephites, that they might also be brought to rejoice in the Lord their God, that they might become friendly to one another, and that there should be no more contentions in all the land which the Lord their God hath given them.

They hoped to teach the Lamanites about the Lord their God. They wanted to show them that their fathers had done wrong. They hoped to heal their hate toward the Nephites. Then everyone could be happy in the Lord their God. They could be friends with each other. There would be no more fighting in all the land God had given them.

Maybe, just maybe, they could help the Lamanites come to know the Lord. Maybe they could help them see the wrongs their ancestors had committed. Maybe they could heal the hatred between the two peoples, so both could celebrate God together and finally live as friends. No more violence. No more war. Just peace in the land God had given them.