THIS ARTICLE TRACES THE ORIGIN AND EVALUATION OF A SPECIAL FOREIGN LANGUAGE TRAINING CONCEPT THAT EVOLVED OUT OF A SPECIFIC MILITARY NEED TO INTERROGATE NEWLY CAPTURED PRISONERS OF WAR TO ACQUIRE IMMEDIATE TACTICAL INFORMATION. THROUGH AN INITIAL FEASIBILITY STUDY, A REASONABLE SET OF VERBAL MATERIALS WAS SELECTED AS COURSE CONTENT, AND A SELF-INSTRUCTIONAL COURSE WAS DESIGNED AND EVALUATED FAVORABLY. FURTHER RESEARCH DEVELOPED OPERATIONAL COURSES IN RUSSIAN AND MANDARIN CHINESE THAT SATISFIED THE MILITARY NEED AND MET THE ADMINISTRATIVE CONSTRAINTS OF THE SYSTEM. THE BULK OF THE ARTICLE CONTAINS DISCUSSIONS OF THE TRAINING CONCEPT, THE RESEARCH PROCEDURE, LESSON STRUCTURE, AND SOME IMPLICATIONS FOR A GENERAL FOREIGN LANGUAGE TRAINING CONCEPT AND METHODOLOGY. THIS ARTICLE APPEARED IN THE "INTERNATIONAL REVIEW OF APPLIED LINGUISTICS IN LANGUAGE TEACHING," VOLUME 5, NUMBER 1, MARCH 1967, PAGES 27-36. (AB)