First book in a series that spans the end of wwII through around 1975-ish.
Covers a cast of characters as the writer tells the behind the scene stories of Army aviation (helicopters). Its not a history novel but a very fun, enjoyable, flying by the seat of your pants, action pack, kick butt kinda story.
remainder books are "The Captains", "The Majors", "The Colonels", "The Generals" and several sideline books "The Aviators" etc... that make this one hecka a top story to read.
If you got the time I highly recommend everyone read the whole series - will give you a very good perspective on our military.