The current focus on an ever-increasing sophistication of weapons systems usually overlooks efforts of states to enhance the physical and mental capabilities of human soldiers. While such techniques and technologies have a long history (e.g. the use of drugs and alcohol in order to overcome fear and fatigue; the use of night-vision goggles etc.), they have attained a new quality. For instance, certain armed forces are introducing wearable robotics suit (Powered exoskeletons). Furthermore, the development of military applications of brain-computer interfaces continues, which would allow for direct communication between a human brain and a computer – and eventually vice-versa. These technologies raise a number of pertinent international legal issues, such as: What are the potential consequences for compliance with the rules and principles of the law of armed conflict? What implications may such technologies have for the accountability of states and individuals? And what would the use of such technologies mean for the human rights of the human soldier?