2013 was marked with several noteworthy events with particular relevance to international humanitarian law, such as the continuation of the conflict in Syria and the incidents related to the use of chemical weapons in that conflict, several key decisions in international, hybrid and national courts related to the adjudication of war crimes, crimes against humanity and genocide, the passage of an Arms Trade Treaty text, the 150th anniversary of the International Committee of the Red Cross, and the release of the second part of the Turkel Commission Report. This chapter addresses a number of these issues among other events of note.