The Templars and the Assassins: The Militia of Heaven is a non-fiction book written by James Wasserman[1] and published in 2001 by Inner Traditions International. The book is a cumulative summary of the Knights Templar and the Nizari Hashshashins (Assassins), and also gives a brief chapter on secret and occult societies.
The book consists of a preface, 4 parts, 26 chapters, 2 appendixes, a bibliography, and an index. The Preface is an introduction to occult and secret societies; Part 1 is a description of the political and religious reasons throughout Europe for the crusades; Part 2 is mainly concerning the Hashshashins; Part 3 is mainly concerning The Knights Templar; and Part 4 is the "aftermath".[2][3][4] The book has received mostly good reviews.