Japan's only resource center on sex slavery is holding a special exhibition in Tokyo on how women were exploited in China by the Imperial Japanese Army and how they have struggled since the end of the war.

"In China, many women were abducted and raped by Japanese soldiers as a warning against anti-Japan movements there," said Eriko Ikeda, director of the exhibition at the Women's Active Museum on War and Peace, known as WAM.

"A lot of 'comfort stations,' which we should rather call rape stations, were set up immediately after Japanese forces advanced into each region."