RUSSIAN CHEMICAL WARFARE: NERVE GASES Report by the Joint Scientific and Joint Technical Intelligence Committees. Introduction 1. Since the end of the First World War, research work has been conducted by all the major powers in an endeavour to find new and better Chemical Warfare (C.W.) agents and to improve the old, but no very substantial progress was made until 1937. In that year, a chance discovery in Germany led to the introduction of what are now known as the Nerve gases. These substances represent a considerable advance in chemical warfare and introduce a hazard of an entirely different order from that of the hitherto known C.W.