Three South Korean women filed suit in Japan in December 1991, around the time of the 50th anniversary of the Pearl Harbor attack, demanding compensation for forced prostitution. In 1992, documents which had been stored since 1958 when they were returned by United States troops and which indicated that the military had played a large role in operating what were euphemistically called "comfort stations" were found in the library of Japan's Self-Defense Agency. The Japanese Government admitted that the Imperial Japanese Army had forced tens of thousands of Korean women to have sex with Japanese soldiers during World War II. On January 14, 1992, Japanese Chief Government Spokesman Koichi Kato issued an official apology saying, "We cannot deny that the former Japanese army played a role" in abducting and detaining the "comfort girls," and "We would like to express our apologies and contrition". Three days later on January 17, 1992, at a dinner given by South Korean President Roh Tae Woo, the Japanese Prime Minister Kiichi Miyazawa told his host: "We Japanese should first and foremost recall the truth of that tragic period when Japanese actions inflicted suffering and sorrow upon your people. We should never forget our feelings of remorse over this. As Prime Minister of Japan, I would like to declare anew my remorse at these deeds and tender my apology to the people of the Republic of Korea." He apologized again the following day in a speech before South Korea's National Assembly. On April 28, 1998, the Japanese court ruled that the Government must compensate the women and awarded them each.