日本国とアメリカ合衆国との間の相互協力及び安全保障条約
Top US government officials have declared in 2004, 2010, and September 2012 that as Japan maintains effective administrative control on the islands, the islands fall under the 1960 Treaty of Mutual Cooperation and Security between the United States and Japan which requires the US to assist Japan in defending the islands if anyone, including China, attacks or attempts to occupy or control them.