Wow! This book is a massive reference book for history nerds. This cover the entire war in historical record. We got dates, event and troops movements help with a lot of maps. Obviously the most recent and major conflict have more details because we have more information on WW1 then we have on Sumerians wars from over 4000 years ago. You can just browse trough it and enjoy, but there is also a bunch of glossary and index to help you searching in something particular if need be. Masterpieces level of references!