My advice is: 1. Be judicious in the use of military force. 2. When military force is required, use overwhelming force. 3. Do not micromanage military leaders. 4. Ensure your battle plans will win the conflict and win the peace.
Although we have, in theory, abolished human slavery, recognized women's rights, and stopped child labor, we continue to enslave other species who, if we simply pay attention, show quite clearly that they experience parental love, pain, and the desire for freedom, just as we do.