Introduction to the Labor Grave Site: During World War II, the Japanese Kwantung Army captured a total of 170,000 laborers in the country to build the Dongning Fortress. Most of these people were tortured to death and buried together. The Labor Grave Site is the most powerful evidence of the crime. . The laborer's grave site is located on a hill 1.5 kilometers north of Laochengzigou Village, Datuchuan Town, Dongning. It covers an area of ​​more than 20,000 square meters. The bones of more than 8,000 Chinese workers are buried here. Laborer's graves like this are in There are more than 10 places in Dongning.