Horned People

The world has been at war for many years. The tailed people and the Humans against the Animals and the Horned people, and the Horned people seem to be the problem. Villages and cities are completely destroyed. Scientifically created living weapons with the power equivalent to nuclear bombs are now live. How are three individuals able to prevent things from getting worse (if they CAN get any worse). Perhaps those who look up to the moon will get their answer, but what's so special about the moon?