Deer Hunter Question
 

How come mike (Robert Deniro) didn't have to shave his beard? Wouldn't they have made him shave it when he went to war.

He didn't have a beard during the combat scenes.
http://www.reelfilm.com/images/deerhunt.jpg

Are you taking about afterwards, when he was back home? I figured he was already disharged after serving his tour and was wearing the uniform for the funeral.
http://www.merylstreeponline.net/tdh4.jpg