as supreme leader of the party and the state. On 30 December a meeting of the Politburo officially appointed him Supreme Commander of the Korean People's Army, after he was nominated for the position by Kim Jong-il in October 2011 (the anniversary of Kim Jong-il's becoming general secretary). Despite the fact that he was not a Politburo member, Kim Jong-un was named to the unofficial position of the supreme leader of the Workers' Party of Korea. After celebrations for Kim Jong-il's 70th birth anniversary, the Politburo announced on 18 February the 4th Party Conference (which was scheduled for mid-April 2012, near the 100th birth anniversary of Kim Il-sung) "to glorify the sacred revolutionary life and feats of Kim Jong-il for all ages and accomplish the Juche cause, the Songun revolutionary cause, rallied close around Kim Jong-un". Kim Jong-un was promoted to the rank of "Marshal of the Republic" in July 2012. At the 4th Party Conference on 11 April, Kim Jong-il was declared Eternal General Secretary and Kim Jong-un was elected to the newly created post of First Secretary of the Workers' Party of Korea and the Presidium. The conference amended the party rules to say Kimilsungism-Kimjongilism "the only guiding idea of the party". In December 2013, the party experienced its first open inner struggle in decades with the purge of Jang Song-taek. The party has seen somewhat of a revival under Kim Jong-un, with more frequent meetings. There have been two conferences, after a gap of 44 years, and a congress between 2010 and 2016. After staging a huge military parade in celebration of the party's 70th anniversary on 10 October 2015, the Politburo announced that its 7th Congress will be held on 6 May 2016 after a 36-year hiatus. The congress announced the first Five-Year Plan since the 1980s and gave Kim Jong-un the new title of chairman, which replaced the previous office of First Secretary. In January 2021, Kim Jong-un was given the title of general secretary, replacing the title of chairman. It was reported in June 2021 that the party set up the post of 'First Secretary', with speculation that Jo Yong-won or Kim Tok-hun, the Premier of North Korea would fill the position. Starting from 2021, Kim Jong-un has started reviving communism and communist terminology within the WPK, with the ideology being again written to the party rules. He also increasingly replaced Songun with "people-first