form the "General Association of Korean Residents in Japan", or Chongryon, in 1955. This organisation kept to its socialist, and by extension pro-North stance, and enjoyed the active financial support of the North Korean government. In 1965, Japan concluded a Treaty on Basic Relations with the Republic of Korea and recognized the South Korean government as the only legitimate government of the peninsula. Those Koreans in Japan who did not apply for South Korean citizenship kept Chōsen-seki which did not give them citizenship of any nation. Newcomers Starting in 1980, South Korea allowed its students to study abroad freely; starting in 1987 people older than forty-four were allowed to travel abroad. One year after the Seoul Olympics, traveling abroad was further liberalized. When Expo 2005 was held, the Japanese government had a visa waiver program with South Korea for a limited period under the condition that the visitor's purpose was sightseeing or business, and later extended it permanently. Existing Korean enclaves tend to exclude newcomers from existing Korean organizations, especially Mindan, so newcomers created a new one called the (, ). Repatriation to Korea Repatriation of Zainichi Koreans from Japan conducted under the auspices of the Japanese Red Cross began to receive official support from the Japanese government as early as 1956. A North Korean-sponsored repatriation programme with support of the Chōsen Sōren (The General Association of Korean Residents in Japan) officially began in 1959. In April 1959, ( Terao Gorō), a political activist and historian of the Japanese Communist Party, published a book North of the 38th Parallel (), in which he praised North Korea for its rapid development and humanitarianism; numbers of returnees skyrocketed. The Japanese government was in favour of repatriation as a way to rid the country of ethnic minority residents that were discriminated against and regarded as incompatible with Japanese culture. Though the United States government was initially unaware of Tokyo's cooperation with the repatriation programme, they offered no objection after they were informed of it; the US ambassador to Japan was quoted by his Australian counterpart as describing the Koreans in Japan as "a poor lot including many Communists and many criminals". Despite the fact that 97% of the Zainichi Koreans originated from the southern half of the Korean Peninsula, the North was initially a far more popular destination for repatriation than the South. Approximately 70,000 Zainichi repatriated to North Korea during a two-year