There are numerous Order of Battle books on the market. So what makes this one so special? Why should one decide on this particular book? For one thing, most Order of Battle usually deals with only the Armies of the country/countries, and then only at the division and corps level. Higher echelons of commands are not covered. This book deals with all the branches of a country's military, giving a breakdown of all the major echelons of command, from theater down to division. Under each major component, in the book (Army Group, Armies, Corps, and Divisions), the equivalent commands of the other military branches of the country's armed forces are included. Second, it attempts to give an overall command structure of the country's military; showing the central headquarters command structure. The command structure for Military Theaters, Army Groups, Naval Commands, Armies, Fleets, Corps, and/or equivalent Commands is also listed. Third, most Order of Battles list the commanders and their dates of tenure. This one includes those, but also lists of their next duty assignment, where they went after leaving this post. One can literally trace a general officer's career through the upper echelons of command with this book. Making this book completely different from all the others on the market. Fourth, this book lists all the major warships of the country's Navy. Each major warship of carrier, battleship and cruiser is listed, plus a list of the ships commanders. Fifth, military unit and/or ship insignia, crest, emblem, or patches are pictured next to the unit/ship, whenever it was found. This is just the first book in a series that I plan to write covering all the nations who were involved in this world conflict.