The Vietnam WarAt a total cost of more than 3.1 million lives, the Vietnam conflict is, to date, America's longest and most controversial war. It also marked the first time TV journalists ventured out to the frontlines to bring the spectacle of combat into American living rooms. Across the nation, Americans watched, captivated by the surprise Tet Offensive, the slow-motion tragedy of the Battle of Khe Sanh, and the courage and skill of the American soldiers.