There's nothing wrong with a little flag waving although I can see where it gets overdone.

HOWEVER, Having watched Band of Brothers several times, I can't think of a single instance of it. If anything, it knocks it. Recall the scene where Nixon turns down the trip stateside to sell war bonds, and Winters uses it to get rid of the clueless platoon leader, Peacock. (Also in the book, pg 199 in the paperback edition.)

I haven't had the opportunity to watch The Pacific, but intend to do so soon. Being HBO, it'll be re-run a dozen times before it goes to the History/Military channels.