苦難の行軍
In the early to mid-1990s, the Chinese government was relatively tolerant with the issue of North Korean defectors. Unless the North Korean government sent special requests, the Chinese government did not display serious control of the residence of North Koreans in Chinese territory. However, along with intensified North Korean famine in the late 1990s, the number of defectors sharply increased, which raised international attention. As a result, China stepped up the inspection of North Korean defectors and began their deportations.