single issue photographs of the faces of the roughly 250 or so American servicemen who had been killed in Vietnam during a "routine week" of war in the spring of 1969. Contrary to expectations, the issue sold out with many being haunted by the photographs of the ordinary young Americans killed. On October 15, 1969, hundreds of thousands of people took part in National Moratorium anti-war demonstrations across the United States; the demonstrations prompted many workers to call in sick from their jobs and adolescents nationwide engaged in truancy from school. About 15 million Americans took part in the demonstration of October 15, making it the largest protests in a single day up to that point. A second round of "Moratorium" demonstrations was held on November 15 and attracted more people than the first. Hearts and Minds campaign The U.S. realized that the South Vietnamese government needed a solid base of popular support if it were to survive the insurgency. To pursue this goal of winning the "Hearts and Minds" of the Vietnamese people, units of the United States Army, referred to as "Civil Affairs" units, were used extensively for the first time since World War II. Civil Affairs units, while remaining armed and under direct military control, engaged in what came to be known as "nation-building": constructing (or reconstructing) schools, public buildings, roads and other infrastructure; conducting medical programs for civilians who had no access to medical facilities; facilitating cooperation among local civilian leaders; conducting hygiene and other training for civilians; and similar activities. This policy of attempting to win the hearts and minds of the Vietnamese people, however, often was at odds with other aspects of the war which sometimes served to antagonize many Vietnamese civilians and provided ammunition to the anti-war movement. These included the emphasis on "body count" as a way of measuring military success on the battlefield, civilian casualties during the bombing of villages (symbolized by journalist Peter Arnett's famous quote, "it was necessary to destroy the village to save it"), and the killing of civilians in such incidents as the My Lai massacre. In 1974 the documentary Hearts and Minds sought to portray the devastation the war was causing to the South Vietnamese people, and won an Academy Award for best documentary amid considerable controversy. The South Vietnamese government also antagonized many of its citizens with its suppression of political opposition, through such measures