reunification through military means. The Yanan faction, led first by Mu Chong and then by Kim Tu-bong and Choe Chang-ik, were those Korean exiles who had lived in China's Shaanxi province and joined the Chinese Communist Party whose regional headquarters were at Yan'an. They had formed their own party, the North-Chinese League for the Independence of Korea, and when they returned to North Korea from exile they formed the New People's Party which merged with the North Korean Bureau to form the Workers Party of North Korea. Many members of the Yanan faction had fought in the Chinese 8th and New 4th Armies and thus had close relations with Mao Zedong. The Guerrilla faction, led by Kim Il-sung, was made up of former Korean guerillas who had been active in Manchuria after it was occupied by Japan in 1931. Many in this group ended up fleeing Manchuria, as their armed resistance was suppressed, and moved to the Soviet Union where many of them, including Kim, were drafted into the Red Army. Once the WPK was created there was a virtual parity between the four factions with the Yanan, Soviet and Domestic factions each having four representatives on the Politburo with the Guerrilla faction having three. In the early years of the party, Kim Il-sung was the acknowledged leader, but he did not yet have absolute power, since it was necessary to balance off the interests of the various factions. To eliminate any threats to his position, he first moved against individual leaders who were potential rivals. He drove from power Alexei Ivanovich Hegay (also known as Hŏ Ka-i), leader of the Soviet faction, first demoting him during the Korean War in 1951 and then using him as a scapegoat for slow repairs of a water reservoir bombed by the Americans to drive him from power (and to an alleged suicide) in 1953. In part, it was possible for Kim to do this because the intervention of "Chinese People's Volunteers" in the war reduced the influence of both the USSR and the Soviet faction and allowed Kim Il-sung the room he needed to dispose of his main rival. Kim Il-sung also attacked the leadership of the Yanan faction. When the North Koreans were driven to the Chinese border, Kim Il-sung needed a scapegoat to explain the military disaster and blamed Mu Chong, a leader of the Yanan faction and also a