Introduction -- An overview of the normative framework of jus in belloul -- Defining an armed conflict -- Identifying situations of hostilities -- The rule of distinction in attack : objects -- The rule of distinction in attack : persons -- The rule of proportionality in attack -- The rule of precautions in attack -- The superfluous injury rule -- Warfare on land -- Aerial warfare -- Naval warfare -- Armed conflict in space -- Cyberwarfare -- Terrorism and the law of armed conflict -- Promoting respect for hague law.