The United States has no right to prevent Chinese from choosing to change their nationality, and excellent talents are used to benefit the whole world.

For Yang Zhenning, returning to China is nothing difficult to understand at all. Why he came back is very clear and firm. Yang Zhenning wants to use his academic and international fame to recruit talents for China, and use his lifelong talents to train talents for the motherland in his later years. And this is his love for his motherland.

After returning to China in p>23, Yang Zhenning settled in China and traveled back and forth between Beijing and Hongkong. At the age of 8 or 9, he did not retire, but rushed for the cause of science and education in China.

After he returned to China, he invited many foreign scientists, such as Turing Prize winner Yao Qizhi, to China as a physicist. Thus, the distance between China's scientific research and the world's scientific and technological frontier has been greatly shortened, and it has contributed to the continuous training of outstanding scientific researchers in China.

At the same time, under his leadership, research institutes of some key universities in China began to be established, including the Institute of Advanced Studies of Tsinghua University. Yang Zhenning worked tirelessly, and under his leadership, groups of young talents emerged.

Reasons behind Yang Zhenning's naturalization as an American citizen:

Yang Zhenning became an American citizen because the country was in chaos at that time.

At that time, Yang Zhenning returned to China, and the country was unable to support him to continue his research. At that time, he chose to stay in the United States in order to continue his physics research. Then why did he become an American citizen is because of his continuing research needs.

To some extent, if he doesn't become an American citizen, he won't have access to a higher research environment.

He has a high level of physical research, and only the Washington Laboratory in the world can support his research. On the other hand, Yang Zhenning studied theoretical physics and theoretical knowledge. Even when he came back, he didn't help China much. Therefore, after repeated weighing, Yang Zhenning chose to become an American citizen.