A large number of people are devoting their attention to a closer study of foreign affairs. Many of them may not have the opportunity to read the larger volumes of histories; and, indeed, even if they had, they would find their choice of books very much restricted when they came to the more recent period of European and world history. Some knowledge of this period is essential if we are to understand the full significance of the events of to-day, and if we are to form any helpful opinion of the course to be pursued in future. It may therefore serve some useful purpose if a few poles of scaffolding representing the dates and outline of conflicts and agreements between nations can be supplied in a very brief and easily intelligible form, a presentment of the bare record of facts which may be useful for reference. This book endeavours to outline War Treaties that were defined between the period 1815 to 1914. These can be useful for reference purposes by those pursuing International politics.