What do you mean by repatriating illegal immigrants between China and the United States?

Repatriation of illegal immigrants between China and America.

In 20 15, an agreement was reached between China and the United States to repatriate illegal immigrants, and an agreement was signed between China and the United States to deal with illegal immigrants from the United States in China and China in the United States and let them return to their own countries.

Illegal immigrants, also known as illegal immigrants, refer to "undocumented immigrants" who cross the border illegally by non-citizens. This term usually means many social problems. Such as economy, social welfare, education, crime, public welfare, health insurance and human rights.