This dissertation has three primary aims. The first is to decentre Euro-America in the Anglophone literature of radio broadcasting during the Interwar Period, and the second is to decentre China in the Sinophone literature on early-period broadcasting before 1949. As radio was a global medium, a history of one without the other would be incomplete. The third aim of this dissertation is to decentre Shanghai in the study of Chinese radio history. To this end, it introduces the history of the Central Broadcasting Station, i.e., Nationalist Radio. Founded by the Chinese Nationalist Party in 1928, Nationalist Radio was the inspiration of a conservative group of revolutionaries within the party called the CC Clique, whose belief in scientism led them to place radio broadcasting at the centre of the party state. During the Nanjing Decade (1928–1937), the CC Clique employed radio as both a tool of governance to promote political tutelage and a weapon of war to mobilise the nation as broadcast propaganda became a fourth front in modern warfare.

 The mission of Nationalist Radio was one of nationalisation in all senses of the word, which echoed developments in the global oecumene as countries mobilised on the fourth front. This dissertation looks at how the CC Clique carried out the radio nationalisation of China in three phases between 1928 and 1937. In the first phase, the CC Clique used broadcasting technology to unify the party state. As radio became a mass medium in China, the CC Clique embedded propaganda into entertainment to expand the reach of party-state broadcasting to a general audience from 1933 to 1935. During the third phase in 1936 and 1937 as China prepared for war against Japan, the CC Clique established a party-state broadcasting system and nationalised the industry in the name of radio education. Using primary sources from Mainland China, Taiwan, and abroad, this dissertation investigates the spirit of Nationalist broadcast propaganda to show how the CC Clique used radio broadcasting as a tool of governance and a weapon of war during each phase of radio nationalisation. This dissertation shows that CC Clique officials consolidated effective party-state control over a factious industry that they inherited in 1928 and established a national broadcasting network in 1937. It also shows that the spirit of political tutelage, i.e., broadcast propaganda, changed as the CC Clique focused on the radio nationalisation of the party state, the audience, and the industry.