During the Vietnamese war, the US army sprayed this kind of chemical agents in the tropical rain forests in the Central-Southern Peninsular in an attempt to force the Vietnamese army out of the dense forests.
They use the Vietnamese war as an index to judge the deep influence armed intervention has on the devastation of the environment.
The metal poisoning, body deformity and children's high death rate in the so-called hot regions are all suspected as the residual effects of the Vietnamese war.
