19th-Century Expectations
In both North America and Europe in the 19th century, women and men were expected to fill separate spheres of society. Men were expected to live a public life, whether it was working in a factory or socializing with like-minded men in public places, like meetings. On the other hand, women were usually expected to live their lives largely homebound, taking care of the cooking, cleaning, and child rearing. Free time for women was not supposed to be spent socializing but doing other things related to the maintenance of the family, from sewing socks to laundry.
Answer:
woman get more lazyyyyyyyyyyy
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.