Kim Tu-bong
On 13 October 1945, the North Korean Bureau of the Communist Party of Korea (NKB–CPK) was established, with Kim Yong-bom its first chairman. However, the NKB–CPK remained subordinate to the CPK Central Committee (headquartered in Seoul and headed by Pak Hon-yong). Two months later, at the 3rd Plenum of the NKB, Kim Yong-bom was replaced by Kim Il-sung (an event probably orchestrated by the Soviet Union). In spring 1946 the North Korean Bureau became the Communist Party of North Korea, with Kim Il-sung its elected chairman. On 22 July 1946 Soviet authorities in North Korea established the United Democratic National Front, a popular front led by the Communist Party of North Korea. The Communist Party of North Korea soon merged with the New People's Party of Korea, a party primarily composed of communists from China. On 28 July 1946 a special commission of the two parties ratified the merger, and it became official the following day. One month later (28–30 August 1946) the party held its founding congress, establishing the Workers' Party of North Korea (WPNK). The congress elected former leader of the New People's Party of Korea Kim Tu-bong as the first WPNK chairman, with Kim Il-sung its appointed deputy chairman. However, despite his formal downgrade in the party's hierarchy, Kim Il-sung remained its leader.