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My dad served during Vietnam...most of which he will not talk about. It was about 20 yrs ago, but I made a trip to DC with the old man, and we went to see the Wall. I had never seen my dad cry before, and haven't since. Unless you served during Vietnam, and deployed there, I don't think anybody will really understand the emotions people go through when visiting the different war memorials, but to me, it makes me proud to know my father served his country during a very, very trying chapter in our Nation's history.