1. Foreign Relations of the United States, 1943, the Conference of Cairo (Washington, DC: U.S. Government Printing Office, 1943), 448–449.
2. Shimoda Treaty (1855) in The Northeast Asian History Foundation, Kuntae Choyakkwa Tong-Ashia Yŏngt'o Kwallyŏn Charyo Sŏnchip (Selected Pre-Modern Treaties Concerning Territorial Aggression), Vol. II (Seoul, Korea: The Northeast Asian History Foundation, 2021), 20–22.
3. Treaty of St. Petersburg (1875) in The Northeast Asian History Foundation, Selected Pre-Modern Treaties Concerning Territorial Aggression, Vol. II, 44–50.
4. U.S. Department of State, The Department of State Bulletin (Washington, DC), September 24, 1956, 484.
5. “Yalta Agreement, February 11, 1945,” cited in Bruce Elleman, Michael Nichols, and Matthew Ouimet, “A Historical Reevaluation of America's Role in the Kuril Islands Dispute,” Pacific Affairs, Vol. 71, No. 4 (Winter, 1998–1999), 491.