Frankum’s Dictionary is a first-rate companion to Tucker’s set. It contains maps, cross-references, acronyms, and a photo section. The 600-plus-entry dictionary focuses on the conflict. Frankum’s book also contains a solid bibliography subdivided by subject. The 'Readers Notes' will help in navigating the material, and the author states that he made a conscious attempt to make the work accessible to novices as well as experts. Excellent starting point for general readers with an interest in military history and for researchers.