On This Day: Vietnam War: The U.S. Army begins Operation Ranch Hand, spraying an estimated... (1961)

On August 10, 1961: Vietnam War: The U.S. Army begins Operation Ranch Hand, spraying an estimated 20 million US gallons (76,000 m3) of defoliants and herbicides over rural areas of South Vietnam in an attempt to deprive the Viet Cong of food and vegetation cover.

This historical event can serve as a powerful sermon illustration about how God works through the events of history. Consider using it when preaching about history.