There emerged at the close of the three years of preparatory work by the Government Experts convened by the ICRC, from 1971 to 1973, a provision that had no counterpart in the four Geneva Conventions of 1949. This was a provision requiring the employment of legal advisers to military Commanders. It was a bold provision, for which the Canadian Experts can claim the credit for its introduction, although the idea went through a number of changes both of substance and presentation in the course of debate.