On July 23 Austria delivered an ultimatum to Serbia, on July 26 rejected the Serbian reply (although the Kaiser, now nervous, admitted that it “dissipates every reason for war”), on July 28 declared war on Serbia, on July 29 bombarded Belgrade. On that day Russia mobilized along her Austrian frontier and on July 30 both Austria and Russia ordered general mobilization. On July 31 Germany issued an ultimatum to Russia to demobilize within twelve hours and “make us a distinct declaration to that effect.”
