Agent Orange was a herbicide and defoliant used by the U.S. military during the Vietnam War. It was composed of equal parts of two herbicides, 2,4-D and 2,4,5-T, and was contaminated with dioxin. Agent Orange was sprayed over jungles to remove leaves and vegetation that provided cover for enemy forces. While effective as a defoliant, Agent Orange caused widespread health and environmental impacts due to its toxic dioxin contamination, including increased rates of cancer and birth defects among those exposed. The document discusses the chemical composition and effects of Agent Orange.