All civilian persons shall benefit from an equal treatment. No one can be disadvantaged because of race, colour, language, religion, political or other opinions, social origin, faith, sex, wealth or any other circumstance. 

Foreign civilians or civilians of an adverse party to a conflict are specifically protected under the law of armed conflict. If they are in the hands of a military unit, they must at all times be treated humanely. Any act of torture, physical or mental ill-treatment, degrading treatment or discrimination as well as measures of reprisal are prohibited.  [emphasis in original]