An enlistment date in 1979 would have been too late to have served in the Vietnam War. I wonder if he was prior service, got out, and then reenlisted. You'd be surprised how often that happens. We have a large Korean population around Ft. Rucker, so I would guess that his wife, likely his second wife, was Korean. Many retired soldiers who went through Ft. Rucker come back and work as civilians on post.