Really depends on when they served. My dad is turning 60 next month and served a tour in Vietnam. His older brother is 65 and served two tours. It was a long war. I really think it all comes down to personality. My dad won't discuss anything other than he was there and some of the sites he saw while there. My uncle will talk your ear off about it if you let him. Of course he was a 30 year Marine, with lots of interesting stories.
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