Unfortunately, I have never read Guns of August; although I have heard it is a classic. It appears that you are interested in World War I. I would like to make a recommendation to you. Dreadnought: Britain, Germany and the Coming of the Great War by Robert K. Massie is an outstanding book. Have you ever wondered how Great Britain went from a close relationship with Prussia (later Germany) to an alliance with their historical nemesis France? In this book Massie traces how that happened and why it happened. Makes fascinating reading of an event that,in many respects, set the stage for the 20th century. If you haven’t read it hope you enjoy it.