The study which is here presented to the English-reading public appeared originally in the Dutch periodical _De Gids_, 1915, No. 1, under the title “Heilige Oorlog Made in Germany.” It has been ably translated by Professor Joseph E. Gillet of the University of Wisconsin, with the distinct attempt to preserve as much of the style of the author as the English language will permit. I am glad of the opportunity to express publicly my thanks to Professor Gillet for the readiness with which he accepted the task I laid upon him. RICHARD GOTTHEIL. COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK March, _1915_. The Holy War “Made in Germany” The Holy War “Made in Germany” More than ten years ago I had a conversation with a Turk of a highly intellectual type about religious fanaticism and its bearing on political situations. He concluded his considerations on this subject about as follows: “In former times the inhabitants of the civilized world used to destroy each other for being at variance about the mysteries of the other world. Now, however, glory be to Allah, humanity has overcome this barbarous custom and everybody is free to believe what he likes. But what good is this to us, as long as wars continue to be waged on account of economic and political interests, wars of which the fanaticism is not to be outdone by that of the bitterest religious strife, and of which the destructiveness is continuously being increased by our immense technical progress? Under such circumstances a quiet enjoyment of the hard-won freedom of thought is out of the question.”