Pathological investigation in a number of countries over the past twenty years has shown that prisoners of war are prone to certain ailments. Papers on considerable and valuable scientific research in this field were delivered at the First International Medical Congress on the Pathology of Captivity in Brussels in 1962, organized by Mr. R. Nachez, President of the International Confederation of Former Prisoners of War, and by Dr. P. Houssa. In 1964 a second congress took place in Cologne, of which an account was given in the February 1965 issue of International Review.