This book is a thorough description of the multiple causes of the outbreak of the First World War. The many politicians involved in this imbroglio at international could rely completely on their foreign counterparts. The various "agreements" (cordial or not) European masked the true intentions and concerns of the governments concerned to the extent that over several months the assassination of the heir to the Austro-Hungarian Empire in Bosnia and Herzegovina turned to local incident war motif Europe. The author of careful not to indict a government rather than another where a different approach than often adopted a Germany "aggressor" and major cause of this terrible disaster.