Read this: In 1987, occupations and units with the primary role of preparing for direct involvement in combat on the ground or at sea were still closed to women: infantry, armoured corps, field artillery, air-defence artillery, signals, field engineers, and naval operations. On 5 February 1987, the Minister of National Defence created an office to study the impact of employing men and women in combat units. These trials were called Combat-Related Employment of Women.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): On what date was a study created to research the impart of women in direct involvement?
5 February 1987