Show me an account of a war where no mistakes were made within the first 5 minutes after the first shot was fired and I will show you a Fairy Tale.
"No battle plan ever survives contact with the enemy." ------ Field Marshall Helmuth Carl von Moltke
If you are Lt. (JG) John Kerry in Vietnam and you are the sole author of the after-action reports for your boat, even fairy tales can come to life.