In the six years since it was created, the Comisión Intersecretarial de Derecho Internacional Humanitario de México, Mexico's Interministerial Committee on International Humanitarian Law, has become one of the region's most active national bodies for the implementation of international humanitarian law (IHL). Its achievements are the result of the efforts of the federal executive branch agencies that form and participate in the Committee, as well as of the support that the International Committee of the Red Cross and the Mexican Red Cross have provided to facilitate its work. In this article, the author describes the structure and operation of the Committee, as well as the activities it has carried out in fulfilling its mandate to disseminate and promote respect for IHL rules, principles and institutions and further the national implementation of IHL. Keywords: CIDIH-Mexico, national IHL committees, international humanitarian law, Mexico.