Why did Zhang Xueliang not return to the mainland until his death?

Zhang Xueliang is a patriot, but he is a good soldier. Therefore, at the request of Chiang Kai-shek, although Zhang Xueliang resisted, he finally ordered the Northeast Army not to resist the policy, and tens of thousands of Japanese troops were like no one's land in the Northeast. (PS: But some historical comments are that Zhang also wanted to preserve his strength. This statement cannot be verified, but who knows the truth of history)

1990 Zhang Xueliang gradually gained personal freedom. 1993 served as honorary president of Northeastern University in April and honorary chairman of Harbin Institute of Technology in May. 1995 left Taiwan Province to live in the United States. 200 1 10 15 died at 2: 50pm in Lu Lu strobe Hospital, Honolulu, Hawaii, USA, at the age of 10 1.

In his later years, he was connected with the avenue, which shows that he couldn't let go of his hometown, but why didn't he go back. So his personal conclusion is: Zhang doesn't have a home, but he is ashamed of tens of millions of people in Northeast China!

(Why did you ask Zhang Xueliang recently? ) ...