The circumstances which had made instant action necessary were as follows. As we have seen from the record of the previous risings, the region of the Yangtsze river has superlative value in Chinese politics. Offering as it does an easy road into the heart of the country and touching more than half the Provinces, it is indeed a priceless means of communication, and for this reason Yuan Shih- kai had been careful after the crushing of the rebellion of 1913 to load the river-towns with his troops under the command of Generals he believed incorruptible. Chief of these was General Feng Kuo-chang at Nanking who held the balance of power on the great river, and whose politics, though not entirely above suspicion, had been proof against all the tempting offers South China made to him until the ill-fated monarchy movement had commenced. But during this movement General Feng Kuo-chang had expressed himself in such contemptuous terms of the would-be Emperor that orders had been given to another high official-- Admiral Tseng, Garrison Commissioner at Shanghai--to have him assassinated. Instead of obeying his instructions, Admiral Tseng had conveyed a warning to his proposed victim, the consequence being that the unfortunate admiral was himself brutally murdered on the streets of Shanghai by revolver-shots for betraying the confidence of his master. After this denouement it was not very strange that General Feng Kuo-chang should have intimated to the Republican Party that as soon as they entered the Yangtsze Valley he would throw his lot with them together with all his troops. Of this Yuan Shih-kai became aware through his extraordinary system of intelligence; and following his usual practice he had ordered General Feng Kuo-chang to Peking as Chief of the General Staff--an appointment which would place him under direct surveillance. First on one excuse, then on another, General Feng Kuo-chang had managed to delay his departure from day to day without actually coming under the grave charge of refusing to obey orders. But finally the position was such that he telegraphed to General Tsao-ao that unless the Yunnan arrangements were hastened he would have to leave Nanking--and abandon this important centre to one of Yuan Shih-kai's own henchmen--which meant the end of all hopes of the Yangtsze Valley rising EN MASSE.