Follow the link to good writing for Veteran's Day. Kirk Weisler writes from personal experience and it is well worth reading on this day.
The current conflict in Iraq has caused much discussion. Vietnam did as well. While the Korean War, WWII, and WWI were less controversial, they were still wars, and wars are a cruel experience. The survivors are generally considered the lucky ones. Some of them are also considered heroes. After discussions with my father, a US Marine veteran of Iwo Jima and Saipan, I believe the real heros are the ones who do not come home.
This thought is also mentioned in James Bradley's Flag of Our Fathers: Heroes of Iwo Jima. This is recommended reading, especially for Veteran's Day.