The Lamanites began to make preparations for war against the people of

1. Alma 24: 4
     4 And the king died in that selfsame year that the Lamanites began to make preparations for war against the people of God.
2. Alma 35: 11
     11 And thus the Zoramites and the Lamanites began to make preparations for war against the people of Ammon, and also against the Nephites.