A document that recorded the murder of comfort women by Japanese military has been discovered.

The Seoul University Human Rights Center's research team announced recently that they discovered this document in the U.S. National Archives and Records Administration after looking through the records over the course of two months. 

The document was recorded by the U.S.-China alliance military in Yunnan, China on September 15, 1944, and it reads, "On the night of September 13, 1944, Japanese soldiers shot and killed 30 Chosun (old name for Korea) women before escaping the castle." 

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The issue of comfort women who were sex slaves to the Japanese military during WW2 has been talked about for quite some time, but the academic research and investigation have been limited to collecting testimonies of the victims. 

The document that was recently uncovered had been revealed in 1997, but it was not the original document, which is why this discovery is extremely meaningful for those who are still fighting for justice for the comfort women victims.