<span>Judging from the fact that the word civis means citizen and the word civitas means city, which are the roots of the word “Civilization,” the correct answer is that early clans of hunter-gatherers did not build towns or cities. Because for there to be civilization there must be citizens living in a city.</span>
The answer is: The Law of Land Warfare, Uniform Code of Military Justice, and Code of Conduct.
The answer may vary from country to country but on an international level the United Nations Charter also provides code of conducts on how modern armies should function in times of war.
These are important in order to provide a moral structure to an Army which can become, as evidenced in history, quite ruthless.
The DOJ which is the Department of Justice
