If war is a timeless reality of mankind, the ways and means whereby it is conducted have nonetheless evolved over time due to new technologies and innovative military strategies. For the most part, however, they have not challenged the ethical rules of warfare. The rapid rise in the use of automated weapons, the growing popularity of remotely controlled weapons, the development in soldiers’ enhancement technologies, of hybrid warfare and the impact of gender equality are all posing tremendous moral challenges affecting the traditional warrior ethos, the justification of killing and criminal...