This is the book am reading at the hour and it's the book of the month in my reading group, I reviewed section Three of this book yesterday and it was amazing.
The First World War and the second has a lot of precipitated History and backlog attached to it, this book opens your eyes to them all and make you understand the whole thing in a better perspective, each data and assertion is backed up by evidences : newspaper headlines of the time, diary, archives and the likes and it now left for you who to believe.
I'll enjoin you to read it too.
Wow, historical non fiction! This would be perfect for my father in law. He loves this sort of thing and often visits all the important museums and battle sites.