美日安保條約
On 23–25 April 2014, U.S. President Barack Obama made a state visit to Japan and held a summit meeting with Prime Minister Shinzo Abe. President Obama repeated that the commitments of Article 5 of Treaty of Mutual Cooperation and Security between the United States and Japan covered all territories under Japan's administration, including the Senkaku Islands, in a joint press conference and reiterated in a U.S.-Japan Joint Statement. Barack Obama is the first president of the United States to have mentioned that the Senkaku Islands are covered under Article 5 of Treaty of Mutual Cooperation and Security between the United States and Japan.