4.1 This clause acts, either upon the giving of notice or automatically depending on the trigger, to cancel the war risks cover otherwise provided upon the occurrence of certain circumstances. From time to time, for example by the previous author of this text, the possibility has been suggested of removing the provision that war risks insurance would automatically cease “upon … any hostile detonation of any nuclear weapon of war” wherever it may occur. The Second Edition of this text (1995) suggested that there should be a simpler provision that only loss of or damage to the insured object caused by “any weapon of war employing atomic or nuclear fission and/or fusion or other like reaction or radioactive force or matter” should be excluded from the insurance.