This book covers many topics that are crucial to military planning but often receive only passing mention in histories or briefings. Collins, a former Army officer, stresses land geography, but he does not stint oceans, the atmosphere, or interplanetary space. His discussions of urban areas are too brief, given the increasing amount of large-scale violence in cities since the end of World War II.
The author's credibility as a military historian and elementary school student tanks when, in a book written circa 1998, he declares that "Japan has never been stormed by outsiders" due to its favorable geography.
This topic is not broached by many other books, so the fact that this author took it up is a good thing in itself. Nonetheless it suffers from some flaws. The greatest is the author's tendency to use a fair deal of obscure military slang, assuming familiarity on the readers' part. He is not always the most lucid writer in general and the book, having been published in 1998, is now outdated. Even so, there is a prophetic quality here and there: certainly foreseeing the possibility of armed conflict over water in the 21st century this early, inter alia, is a credit to the volume.