In 1984, President Reagan commemorated the 40th anniversary of the invasion of Normandy, and paid tribute to the World War II soldiers known as "The Greatest Generation." "These are champions who helped free a continent," he said. "These are heroes who helped end a war." But in his new book, historian David Nasaw calls them "The Wounded Generation." "They are the Greatest Generation, but they returned from war, bringing wounds home with them that are invisible; they're psychic wounds," he said.