SA-7 Grail

(from the article `rocket and missile system`) ...advances in seeker-head technology. Small, heat-seeking, shoulder-fired antiaircraft missiles first became a major factor in land warfare during ... The SA-7 Grail shoulder-fired, infrared-homing missile was first deployed outside the Soviet Union in the final stages of the Vietnam War; ...
Found on http://www.britannica.com/eb/a-z/s/1
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