I've read a few alternate histories lately where a fascist government takes over the U.S. in the 1930's, and War Plan Crimson is easily the best of the lot. I found the description of America under the rule of a pro-Nazi dictator both credible and frightening. The author combines well the many historical persons in his tale with his own fictional creations, and the battle scenes show a good knowledge of the weapons and tactics of that era. There were enough plot twists to keep me guessing about how this was all going to end.
The actual military takeover of the USA is glossed over in the book's opening pages so that the real action can begin a year into the new regime. Should the author be inclined, there's probably an entire prequel novel in the largely untold story of FDR's removal from office. However, I note that the author's intent is to give equal weight to the Canadian perspective and tell the story of how that nation would respond to aggression from south of its border.
I was pleased to see that, unlike many books on this platform, this novel was carefully edited and free from glaring mistakes. One small quibble -- while I have no problem with seeing the Canadian spelling of words, with -our rather than -or, the U.S. military decoration is always the Medal of Honor, not Honour.
The formatting did make reading some parts difficult to read. I think the author wanted to use wide margins for the body of notes and personal letters, but trying to read these on a mobile phone app was nearly impossible -- the text came out as a long column one or two letters wide.
All in all, I think this book would be enjoyed by any fan of alternate history, especially military history.
(reviewed 25 days after purchase)