im Il-sung sent out preliminary signals in late 1955 and early 1956 that he was preparing to move against the Yanan and Soviet factions. The
Twentieth Party Congress of the
Soviet Communist Party was a bombshell with
Nikita Khrushchev's
Secret Speech denouncing
Joseph Stalin and the inauguration of
destalinisation. Throughout the
Soviet bloc domestic Communist parties inaugurated campaigns against
personality cults and the
general secretaries who modelled themselves after Stalin were deposed throughout Eastern Europe. Kim Il-sung was summoned to
Moscow for six weeks in the summer of 1956 in order to receive a dressing down from Khrushchev, who wished to bring North Korea in line with the new orthodoxy. During Kim Il-sung's absence,
Pak Chang Ok (the new leader of the Soviet faction after the suicide of Ho Ka Ai),
Choe Chang Ik, and other leading members of the Yanan faction devised a plan to attack Kim Il-sung at the next plenum of the Central Committee and criticise him for not "correcting" his leadership methods, developing a personality cult, distorting the "Leninist principle of collective leadership" his "distortions of socialist legality" (i.e. using arbitrary arrest and executions) and use other Khrushchev-era criticisms of
Stalinism against Kim Il-sung's leadership.
Kim Il-sung became aware of the plan upon his return from Moscow and responded by delaying the plenum by almost a month and using the additional time to prepare by bribing and coercing Central Committee members and planning a stage-managed response. When the plenum finally opened on August 30 Choe Chang-ik made a speech attacking Kim Il-sung for concentrating the power of the party and the state in his own hands as well as criticising the party line on industrialisation which ignored widespread starvation among the
North Korean people. Yun Kong Hum attacked Kim Il-sung for creating a "police regime". Kim Il-sung's supporters heckled and berated the speakers rendering them almost inaudible and destroying their ability to persuade members. Kim Il-sung's supporters accused the opposition of being "anti-Party" and moved to expel Yun from the party. Kim Il-sung, in response, neutralised the attack on him by promising to inaugurate changes and moderate the regime, promises which were never kept. The majority in the committee voted to support Kim Il-sung and also voted in favour of repressing the opposition, expelling Choe and Pak from the Central Committee.