The condolences made by Japan's Prime Minister during Tuesday's trip to Pearl Harbor have been criticized by the head of a museum in Tokyo dedicated to remembering the "comfort women" of World War II.

Eriko Ikeda, chairwoman of the Women's Active Museum on War and Peace, or WAM, accused Abe of "historical revisionism" and said he should also apologize for other atrocities such as the Nanjing Massacre.

"Prime Minister Shinzo Abe is leaving for Pearl Harbor to 'offer condolences', but why can't he visit and offer condolences to Nanjing and other places in Asia which were also victimized by Japan before and during World War II," she said before Abe's visit.