I have seen it before but so worthy of a revisit. What a fantastic document which would not have been possible - for those of you who care and those who don't - without the existence of PBS "and the generous contribution of viewers like you". I have been a supporter for decades. If any have not had the pleasure of diving into Ken Burn's work from The Civil War to Baseball to The Brooklyn Bridge to The War - you would likely be thrilled with the experience. My bad, on Netflix now.
http://www.pbs.org/thewar/