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, and for the duration of its existence the country's main opposition force. On 15 December 2011, the Democratic Party, which had been the main opposition in the 18th Assembly, merged with the minor Citizens Unity Party to form the DUP. The Democratic United Party had strong connections with the Federation of Korean Trade Unions. The forming of the party took place against the background of the forthcoming April 2012 legislative election, in which the centre-left opposition sought to defeat the ruling

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. At the party's first congress on 15 January 2012, the DUP voted

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administration. The

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followed the Party's position.

List of leaders

Chairpersons

*''Preceding party'': Democratic Party (2008) :: Won Hye-young and Lee Yong-sun (''Interim'', 21 November 2011 – 16 January 2012) #

(16 January 2012 – 16 April 2012) #*

Moon Sung-keun Moon Sung-keun (; born May 28, 1953) is a South Korean actor and politician. He has won three Blue Dragon Film Awards, two Baeksang Arts Awards, and two Chunsa Film Art Awards for Best Actor. Career Moon was born in Tokyo, Japan. His father was ...

(''Interim'', 17 April 2012 – 3 May 2012) #*

Park Jie-won Park Jie-won (; born 5 June 1942) is a South Korean politician who served as Director of the National Intelligence Service. He was the chief presidential secretary to President Kim Dae-jung, and served as the Minister of Ministry of Culture ...

(''Interim'', 4 May 2012 – 8 June 2012) # Lee Hae-chan (9 June 2012 – 18 November 2012) #*

Moon Jae-in Moon Jae-in (, ; born January 24, 1953) is a South Korean politician and former lawyer who served as the 12th president of South Korea from 2017 to 2022. Before his presidency, he served as the senior secretary for civil affairs and the Chief ...

(''Interim'', 18 November 2012 – 28 December 2012) #* Park Ki-choon (''Interim'', 28 December 2012 – 9 January 2013) #* Moon Hee-sang (''Emergency Response Commission'', 9 January 2013 – 4 May 2013) # Kim Han-gil (since 4 May 2013) *''Succeeding party'':

Assembly leaders

# Kim Jin-pyo (23 December 2011 – 4 May 2012) #

(4 May 2012 – 21 December 2012) # Park Ki-choon (21 December 2012 – 15 May 2013) # Jeon Byeong-hun (since 15 May 2013)

Election results

President

Legislature

Notes

References

{{South Korean political parties Defunct political parties in South Korea Democratic parties in South Korea Political parties established in 2011 Korean nationalist parties Progressive Alliance