It has been used as a weapon since the start of human conflict - not only against women but also civilian men and boys - however it is as you’d expect always carried out by men of the offensive nation / religion’s forces. It, like rape in the real world is a way for primitive men to show their power over a nation, it is a psychological and biological weapon, often leaving people with severe PTSD and STD’s. In all democratic nations today it is a war crime, in some punishable with execution. As it should be, however sadly as we’ve seen in Ukraine, unruly young Russian troops are still using it as a weapon despite orders to the contrary from high command.