The Imperial Japanese military used money to cover up its use of sex slaves on the Indonesian island of Bali during World War II, according to a group of university researchers, citing a document found at the National Archives of Japan.
A Japanese chief warrant officer stationed there during the Pacific War told a Justice Ministry investigation in August 1962 that he brought about 70 women to the military brothels and about 200 more by order of his military unit, according to the document.
He also said he was given about 700,000 yen to use to appease local residents. The officer said using money worked really well and there was not one complaint related to sex slavery.
The former Japanese Navy officer also said what he feared most was the existence of these wartime brothels becoming known, according to the archive.
The document was found by a Kanto Gakuin University group led by Hirofumi Hayashi, a professor of modern Japanese history.
"It is important as it confirms the military's role mentioned in the Kono statement," Hayashi said, referring to an official apology over wartime sex slavery made in 1993 by then Chief Cabinet Secretary Yohei Kono.
Kono acknowledged the Japanese military's role in coercing women, mostly Koreans, to provide sex to its soldiers before and during World War II. These women are known euphemistically in Japan as "comfort women."
The document was produced as part of a Justice Ministry investigation conducted to collect information in connection with the war crime trials.