Final answer:
Prince Naka no Õe was the Yamato prince who tried to unify the various clans so that the Japanese could effectively resist a Chinese invasion.
Step-by-step explanation:
The Yamato prince who tried to unify the various clans to resist a Chinese invasion was Prince Naka no Õe. Along with the clan chief Nakatomi no Kamatari, they ousted the Soga clan and implemented changes similar to Prince Shōtoku's '17-Article Constitution' which introduced Buddhist and Confucian ideas to differentiate the Yamato line from other clans.