I spotted this little detail with my father who happens to be a Vietnam veteran. If you look very closely at the flashback scene where Nathan D. Muir (Robert Redford) meets Tom Bishop (Brad Pitt) for the first time in Vietnam, if you look very closely at the battle fatigues the soldiers are wearing at the base camp they are not Vietnam era issue. The battle fatigues appear to be at least Desert Storm era. Just thought I'd point that out.