marines who fought in vietnam. their battalion became known as the ghost battalion, because they lost so many. more than 50 years later, a reunion here in vietnam, with help from the greatest generations foundation. lieutenant colonel james page from florida, who remembers operation harvest moon, a battle that still haunts him. i lost 12 marines that day. i was a company commander, and that has bothered me ever since. so, i hope to go down and get piece when i go stand on the battlefield. i want to bury that. reporter: americans visit every day here. remembering a polarizing time in america, and determined to remember those who served, too. we all lived so much of that, so, to come here and almost, you know, remember some of the young men that we grew up with. it s important. reporter: joann walker s husband served in vietnam. we talked more about it when we got here than we had ever. and it s emotional, because it was difficult, in a lot of ways.