thumb|right|250px|A UH-1D helicopter from the336th Aviation Company sprays a defoliation agent on a dense jungle area in the Mekong Delta. 07/26/1969/National Archives photograph.Agent Orange is the code name for a herbicide and defoliant used by the U.S. military in its Herbicidal Warfare program during the Vietnam War, when an estimated 21,136,000 gal. (80 000 m³) of Agent Orange were sprayed across South Vietnam. 4.8 million Vietnamese people were exposed to Agent Orange, resulting in 400,000 deaths and disabilities, and 500,000 children born with birth defects.The Globe and Mail, June 12, 2008. 'Last Ghost of the Vietnam War'From 1961 to 1971, Agent Orange was by far the most widely used of the so-called "Rainbow Herbicides" employed in the Herbicidal Warfare program. During the production of Agent Orange (as well as Agents Purple, Pink, and Green) dioxin were produced as a contaminant, which have caused health problems for those exposed during the Vietnam War. Agents Blue and
Source:
http://en.wikipedia.org/wiki/Agent Orange