Alma 15

Now it came to pass that when those Lamanites who had gone to war against the Nephites had found, after their many struggles to destroy them, that it was in vain to seek their destruction, they returned again to the land of Nephi. And it came to pass that the Amlicites, because of their loss, were exceeding angry. And when they saw that they could not seek revenge from the Nephites, they began to stir up the people in anger against their brethren, the people of Anti-Nephi-Lehi; therefore, they began again to destroy them.