This book mirrors the several definitions or existing references accorded to Military Necessity with the intent to first establish a clear understanding of the concept, then it proceeds to micro-analyze how certain measures or violence executed in war using Drone Combat, for the purpose of achieving success in war on the basis of military necessity may be done wrongly and to explore the lacuna in the rules of International Humanitarian Law that seasoned military commanders take advantage of, to do unnecessary and horrendous damage that does not fall within the spirit of International Humanitarian Law.