Agent Orange

Agent Orange is a chemical herbicide and defoliant. During the Vietnam War, the United States Armed Forces along with the South Vietnamese military used it in Operation Ranch Hand (1962-1971), part of a broader herbicidal warfare campaign intended to deprive the People's Army of Vietnam/Viet Cong of vegetation cover. It was one of a group of tactical-use herbicides, known as Rainbow Herbicides. Agent Orange was earlier used by the British during the Malayan Emergency which influenced its later use by the U.S. Primarily a mixture of equal parts of two herbicides, 2,4,5-T and 2,4-D, it contained trace amounts of 2,3,7,8-TCDD, a dioxin compound established as a carcinogen and persistent organic pollutant.