Confronted with the practical legal aspects of Peace Support Operations (PSO) in their daily work, the two authors realized that there was an urgent need for the international community of military and civilian lawyers, law enforcement agencies, policy makers, legal advisers and military commanders dealing with these types of missions to have a guidebook analyzing, questioning and providing some solutions to the practical legal aspects intrinsic in them and which are often known only to those who have been serving in the field. It was therefore decided to create a tool to record and diffuse...