The aim of this study was to elevate from obscurity the results of Demetrios Kouretas' research on the drug addicts in the Hellenic Armed forces during the mid-war period. Demetrios Kouretas, gifted with exceptional discernment, undertook a pioneering study regarding the use of addictive substances in the Greek Armed forces. Kouretas did not stick to the epidemiological parameters of the use of narcotics, but also tried to look into the reasons that led to drug addiction and to give an outline of the mental outlook of the drug addicts. Demetrios Kouretas brought forward the problem of drug addiction, which was considered as taboo. His study, based on a strict scientific basis, is considered a byword for the psychiatric research in Greece.