Northern Territories dispute highlights flawed diplomacy. By Gregory Clark. Japan Times, March 24, 2005. "Japanese materials at the time – Foreign Ministry maps, statements by former Prime Minister Shigeru Yoshida at San Francisco and in his later memoirs, and newspaper reports all make it clear that Etorofu and Kunashiri were most definitely included. The chief U.S. negotiator for the San Francisco treaty, Secretary of State John Foster Dulles, agreed. Asked at San Francisco to define the territory of the Kurils, he said only that the Habomais might be excluded (at the time there were suggestions that Shikotan might be part of the Kurils). More was to follow. Questioned in the Diet on October 19, 1951, over whether the word "Kurils" as used in the treaty included Etorofu and Kunashiri, the head of the Foreign Ministry Treaties Bureau, Kumao Nishimura, said unambiguously that both the northern Chishima and southern Chishima (Etorofu and Kunashiri) were included."
Kimie Hara, 50 Years from San Francisco: Re-Examining the Peace Treaty and Japan's Territorial Problems. Pacific Affairs, Vol. 74, No. 3 (Autumn, 2001), pp. 361–382. Available online at J-STOR.
Kimie Hara, 50 Years from San Francisco: Re-Examining the Peace Treaty and Japan's Territorial Problems. Pacific Affairs, Vol. 74, No. 3 (Autumn, 2001), pp. 361–382. Available online at J-STOR.
The convoluted case of the coveted Kurils. By Kosuke Takahashi. Asia Times. November 25, 2004. "Japan and the Allied Powers, including the US and the UK, signed the peace treaty in San Francisco in 1951, when the Soviet Union participated but did not sign the treaty. At the conference, Japan renounced the "Kuril Islands", excluding Etorofu, Kunashiri, Shikotan, or the Habomai Islands, which Japan claimed had always been Japanese territories and wished to claim them after the war."
Hara, Kimie. Japanese-Soviet/Russian Relations since 1945: A Difficult Peace (1998) online