Final answer:
The Republic of China and the Nationalist Party faced challenges from the start, including betrayal by Yuan Shikai, fragmentation, and civil struggle. The rise of the Kuomintang under Sun Yat-sen and later Chiang Kai-shek led to a rift with the communists, culminating in the establishment of the People's Republic of China by Mao Zedong.
Step-by-step explanation:
The rocky start of the Republic of China and the Nationalist Party was marked by internal strife and power struggles. Yuan Shikai, who controlled the army in northern China, became the first president of the Republic of China but later betrayed the revolutionaries by proclaiming himself emperor and dismissing the legislature. The death of Yuan Shikai in 1916 led to further fragmentation as warlords took control of different regions. The May 4th Movement in 1919 led to a resurgence of the revolutionaries and the formation of the Kuomintang (Nationalist) Party by Sun Yat-sen. After Sun's death, Chiang Kai-shek became the leader of the Nationalists, and over time, he distanced himself from the communists, ultimately breaking with them entirely. This complicated relationship with the Communists and the Japanese invasion weakened the Nationalist position, which, compounded by internal corruption and inefficiency, led to the eventual defeat of the Nationalists by Mao Zedong's forces. Mao declared the creation of the People's Republic of China and the Nationalists fled to Taiwan, where they continued the Republic of China, acknowledged by the United Nations and the U.S. until the 1970s.