The refuges offered by forests and jungles posed a serious problem. We sought to perfect the methods of detecting troops, metal objects, or any suspicious material. As these studies began to bear fruit, defoliants came into play on a massive scale; planes such as the C-123 Provider or helicopters sprayed chemicals capable of knocking leaves off trees, which was to facilitate reconnaissance operations. The defoliation killed the trees; it seemed infinitely more serious than massacring human beings. Thus, from 1967 the Vietnam War became a subject of bitter controversy in the United States. People sniffers (person detectors), detector-transmitters or conventional detectors carried by RPV (Remotely Piloted Vehicle) were quickly developed.
In the midst of the war in Iraq, the comparison with Vietnam is inevitable. At first because of the pretext alleged by the United States to participate in the Vietnam War (1964-1975), which, according to several experts, was almost as baseless as the evidence alleged by the Americans that Iraq had w