The December Theses was a directive to the Korean communists on the problems facing the Korean Communist Party (KCP) in Korea by the Communist International after the 6th Congress in 1928. The Koreans considered it a letter of expulsion.
The theses pointed out the failure of the KCP due to its inability to correctly diagnose the nature of Korean society and its economic structure. It said that the party needed to consist of not intellectuals and students but rather workers and peasants. It addressed that the failure of the KCP is due to internal strife (factionalism) as well as crackdowns from the Japanese police force. It also chastised the KCP for failing to distinguish between the national revolutionary movement and the national reformist movement.