Bio-enhanced soldiers are the result of natural human capabilities’ artificial enhancement through technological development for war purposes. Today, the bio-enhancement of soldiers is on the path to realisation. The research focuses on various areas to be improved, from situational awareness to resilience, to remote hardware control. Regarding the conventions or the “laws of war”, how could such enhancements be characterised under the current parameters of International Humanitarian Law (IHL), and with what obligations must they comply?