A widely publicised example of institutionalised sexual slavery are "comfort women", a euphemism for the 200,000 women, mostly from Korea and China, who served in the Japanese army's camps during World War II. Some 35 Dutch comfort women brought a successful case before the Batavia Military Tribunal in 1948. In 1993, Chief Cabinet Secretary Yohei Kono said that women were coerced into brothels run by Japan's wartime military. Other Japanese leaders have apologized, including former Prime Minister Junichiro Koizumi in 2001. In 2007, then-Prime Minister Shinzō Abe claimed: "The fact is, there is no evidence to prove there was coercion."

How many women are believed to have been sexual slaves for the Japenese Army?