On December 12, 1936, Zhang Xueliang and Yang Hucheng rebelled against Chiang Kai-shek. The Communist Party of China forced Chiang Kai-shek to unite with the Communist Party of China to resist Japan, resulting in the "Xi'an Incident" that shocked China and foreign countries.

On the day of the Xi'an Incident, Zhang Xueliang and Yang Hucheng sent a telegram to the whole country on the eight propositions for national salvation, proposing: "Reorganize the Nanjing government to accommodate all parties and factions, and the Communist Party of China will be responsible for saving the country. Stop all civil wars. Release immediately. Arrested patriotic leaders in Shanghai. Release all political prisoners across the country. Ensure all political freedoms of people’s assembly and association. Convene a National Salvation Conference immediately.

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Zhang Xueliang is a national hero. The greatest thing about Zhang Xueliang is that he could have been the king of Northeast China, but Zhang Xueliang loved the motherland. Northeast China had the capital to become independent but did not. A place 36 times larger than Taiwan refused to become independent. His dad died for it. He himself was imprisoned by Chiang Zhongzheng from the age of 36 to 83 for the sake of China's sovereignty, independence and dignity.

On January 13, 1988, Chiang Ching-kuo passed away. After Lee Teng-hui came to power, Zhang Xueliang fully restored his personal freedom in 1990 and later visited the United States. In April 1993, he was appointed as the honorary president of Northeastern University. In May, he was appointed as the honorary chairman of Harbin Institute of Technology. He left Taiwan in 1995 and moved to Hawaii, USA, where he lived until his death.

Baidu Encyclopedia-Zhang Xueliang