Don't be afraid to ask questions but show some tact when you do. It's one thing to ask a vet if he served, when and where. That sort of thing. DON'T ask a vet if they ever killed someone. That will most likely get the door slammed in your face. Be polite and thank them for their service.
I was fortunate enough to have several Vietnam Vets serve with me during Desert Storm. My First Sargent, Platoon Sargent, and my Section Chief were all Vietnam Vets. They were all some of the most down to earth people in the unit (and we were in a National Guard unit from Oklahoma A btry 1/158th FA). They were very cool but when they talked about combat we listened. They had been there and done that, so when the ground war started I looked to them for guidance like most everyone else did. Hell I was only 19 at the time and scared to death. Those guys got me through it in one piece. I think we (the unit as a whole) were able to show them just how much we appreciated them and their service, when we got home. We made sure that all the Vietnam vets in the Battalion (12 total I think) were the first ones off the plane. After all those years they finally got the cheering, flag waving, happy homecoming they deserved. The funny thing is they didn't want to make a big deal about it. Our Battalion commander finally had to make it an order, and I can remember every person on that plane cheering for them as they walked off. It was great to be a part of that.
Remeber to thank the vets tomorrow. Belive me they have earned it!!:aok