Many references to "the war of ideas" have appeared in defense literature recently. However, few of them actually shed any light on what wars of ideas are. This monograph, by Dr. Antulio J. Echevarria II, begins by classifying several types of wars of ideas. It is important to note, as the author points out, that physical events, whether intended or incidental, can play determining roles in the ways these kinds of conflicts unfold, and how (or whether)...