March 11, 1925 (, Yi Chou February 17), Sun Yat-sen signed "Premier wills.


1925, Sun Yat-sen "The prime minister will" sign. Wills said: "must arouse the masses of the people, and the joint to equal nations in the world, the common struggle". Caused by the Soviet Union will, that he practiced "co-alliance with Russia, helping workers and peasants" three major policy determination. Also asked the Song Qingling instead of his visit to Moscow in order to achieve his attempted desire.