War studies, sometimes called polemology, is the multi-disciplinary study of war. It is distinct from military history in that it encompasses a variety of fields:Laws of warPhilosophy of warEthics of warJust War TheoryDeterrence theoryPsychology of warPost traumatic stress disorderPsychological operationsMilitary historyMotivations, Conduct and Effect of WarEconomics of warSociology of warSociology of the militaryInternational relationsPolitical ScienceAnthropology