For more than three decades, historical memory controversies have been fought over Japanese school textbook content in both the domestic and international arenas. In these controversies, Japanese textbook contents, which are subject to Ministry of Education examination and revision of content and language prior to approval for use in the public schools, repeatedly sparked denunciations by Chinese and Korean authorities and citizens with respect to such issues as the Nanjing Massacre, the comfort women, and coerced labor. In 2007, the most intense controversy has pitted the Ministry of Education against the residents and government of the Japanese prefecture of Okinawa. The issue exploded in March 2007 with the announcement that all references to military coercion in the compulsory mass suicides (shudan jiketsu) of Okinawan residents during the Battle of Okinawa were to be eliminated. The announcement triggered a wave of anger across Okinawan society leading to the mass demonstration in Ginowan City of 110,000 Okinawans addressed by the top leadership of the Prefecture. It was the largest demonstration since the 1972 reversion of Okinawa, exceeding even the response to the 1995 rape of a twelve-year old Okinawan girl by three US GIs.