Today almost all of us realize(know,have an idea), what war crime is. Those events are very interesting in terms of the rights and freedoms of men and citizens,whether that American or European countries(all over the world)Today the topic is very relevant both for me and for the Ukrainians.In this article we consider crimes against humanity, open issues concerning genocide, and look at (compare)the real examples from world history.Also,we will analyze these cases according to the law.