On what date did Britain declare war on Germany following an " unsatisfactory reply " to the British ultimatum that Belgium must be kept neutral ?
What does he mean by ‘ impossible ’ ? ” Jagow ordered Lichnowsky to tell Grey of the supposed German ignorance of the Austrian ultimatum , and that Germany regarded Austro - Serbian relations as “ ... an internal affair of Austria - Hungary , in which we had no standing to intervene . ” Jagow ’s statement did much to discredit Germany in British eyes .