1163927 Vietnam: US soldiers on a search-and-destroy patrol in Phuoc Tuy province, South Vietnam, June 1966 by American Photographer, (20th century); (add.info.: US Army photograph Search and Destroy, Seek and Destroy, or even simply S&D, refers to a military strategy that became a notorious component of the Vietnam War. The idea was to insert ground forces into hostile territory, search out the enemy, destroy them, and withdraw immediately afterward. The strategy was the result of a new technology, the helicopter, which resulted in a new form of warfare, the fielding of air cavalry, and was thought to be ideally suited to counter-guerrilla jungle warfare.); Pictures from History; American, out of copyright.