Ruben Stewart is ICRC’s adviser on  technology in warfare in Geneva. As a New Zealand Army officer and then as a humanitarian, he has spent over 20 years working in East Timor, Afghanistan, Iraq, Yemen, Syria, Palestine, Israel, Lebanon, Sudan, South Sudan, and Ethiopia. That experience was characterized by engagement with armed actors in conflict settings. His current work focuses on how emerging technologies and conflict trends are reshaping the character of warfare and on the humanitarian consequences that arise from these developments. He has a Master’s degree in International Relations, is finishing an Executive Master in International Law in Armed Conflicts and has authored a number of articles in various military journals.