 The various government bodies previously in Nanjing, that were re-established in Taipei as the KMT-controlled government, actively claimed sovereignty over all China.The Republic of China in Taiwan retained China's seat in the United Nations until 1971.Until the 1970s, the KMT successfully pushed ahead with land reforms, developed the economy, implemented a democratic system in a lower level of the government, improved relations between Taiwan and the mainland and created the Taiwan economic miracle.