Women are more inclined for what ever biological reason to look after themselves and their family [ie.get them and themselves out of harm's way ].

They can kill when it suits them, but appear not to relish the idea .

It would be very interesting to see however ,if they reacted better to combat including the killing and maiming of their opposition and civilians ,with less Post Traumatic Stress, which is a huge burden that must be accepted and treated.