The Chinese Nationalist Party (KMT) ruled the Republic of China (ROC) in China for about 22 years, from 1927, after the Northern Expedition provided some national unity to a China divided by warlords and revolution to the time it moved to Taiwan, after being thrown out of China by the Chinese Communist Party (CCP) in 1949 at the end of the Chinese Civil War.
When it came to implementing a Leninist party-state system, the CCP learned from the expert KMT.
Even today, both parties hold to the “one China” principle. The CCP sees the elimination of the ROC as unfinished business, and the KMT — and President Ma Ying-jeou (馬英九) — claims that the territory of the ROC also includes China.