Tom,
First, I want to commend you for reading about history, please keep it up, that puts you miles ahead of most in America.
Tom, you keep at it and over time you will discover that there are slightly and not so slightly different versions of most historic events.
Ones written at the time of the event tend to be the least accurate. Over time the stories are changed as more facts come out..............and of course some agenda driven versions come out along the way.
Then as the life's of those involved near the end, "final versions" come out and they tend to be the most accurate, as most involved have told their stories and most data is available.
Today, large well researched books about events of WW2, are comming out, using all available data and stories from both sides. They are much, much more accurate, believable and often change long held views of what went on.
Keep at it Tom, but please keep an open mind, if something seems too good to be true, seems to slant everything one way, it probably is not an accurate depiction of what went on.